Courtney Klosterman Presentation
•Download as PPTX, PDF•
1 like•891 views
This document summarizes a presentation on organic photovoltaic solar cells. It discusses how organic solar cells use a bulk heterojunction of p-type and n-type organic polymers to generate electricity from light absorption. Calculations show thinner polymer layers could optimize light absorption through a cavity effect. The presenter's goal is to verify experimentally that thinner polymer layers in different electrode configurations can absorb as much light as thicker layers. Preliminary results with commercial ITO, polymer and silver layers show agreement with calculations for a 66.1nm thick polymer layer. Further work will optimize materials and structures to improve efficiencies and enable mass production of organic solar cells.
Report
Share
Report
Share
Recommended
Developments in organic solar cells
Organic solar cells have evolved from single layer cells with efficiencies of 0.1% to bulk heterojunction cells that can achieve 10% efficiency. They offer advantages like low-cost deposition techniques, flexibility, and semitransparency but have limitations such as low charge carrier mobility. Future areas of focus include developing tandem cells, incorporating plasmonic structures to enhance light absorption, and exploring ternary blends and cascade charge transfer mechanisms to overcome limitations. With continued advances, organic solar cells show promise to provide a high efficiency, low-cost alternative to traditional silicon photovoltaics.
Organic solar cell
This document discusses organic solar cells as a more efficient and flexible alternative to traditional silicon solar cells. Organic solar cells are constructed using a hybrid of cadmium selenide nano-rods dispersed in an organic polymer layer sandwiched between electrodes. The nano-rods absorb sunlight and produce electron-hole pairs, which are conducted through the polymer layer to the electrodes to generate electricity. Organic solar cells have advantages over traditional cells in that they are more efficient, compact, lightweight, flexible, inexpensive to produce, and can harness invisible light. However, they currently have shorter lifespans and require more maintenance than conventional cells.
Organic Solar Cell
Organic solar cells offer several advantages over traditional silicon-based solar cells including lower manufacturing costs due to easier processing of organic molecules, mechanical flexibility, and potential for large-scale production. They consist of a donor material like a polymer and an acceptor material like fullerene arranged in a bulk heterojunction to separate photo-generated electrons and holes. While organic solar cells are not as efficient as silicon cells today, their lower costs and flexibility make them a promising renewable energy technology.
differantes types of organic solar cells and applications
in this work you will fond a full discription of the technologie of the organic solar cells:
we distanguish 3 types of organic solar cells
sigel layer organic pv
bi-layer hyterojunction solar cells
bulk hyterojunction solar cells
you will fond the adventeges and the desadventeges of eatch one of them
some application of the organic solar cells
Organic photovoltaic cells : OPV
1. Organic photovoltaic (OPV) solar cells aim to provide an abundant and low-cost photovoltaic solution compared to classical silicon solar cells.
2. OPV cells work by absorbing light which creates an exciton, an electron-hole pair, that is separated at the donor-acceptor interface.
3. The three main types of OPV cells are single layer, bilayer, and bulk heterojunction, with bulk heterojunction having the highest efficiencies due to an intermixed donor-acceptor layer.
Organic Photovoltaic Devices (OPVs)
Lecture delivered by Ross Hatton, University of Warwick. Super Solar Research Methods in PV, University of Liverpool, April 2016.
Organic solar cell material
Organic solar cells are a type of photovoltaic cell that uses conductive organic polymers or small organic molecules to absorb light and transport charges. They typically consist of two semiconducting layers made of polymers or other flexible materials. When light is absorbed, an exciton is generated which splits into an electron and hole. The electron then moves to one layer while the hole moves to the other, generating electricity. Common organic materials used in these cells include polymers like P3HT, small molecules like PCBM, and various conducting and semiconducting organic compounds.
Polymer Solar Cell
This document discusses organic solar cells, which convert light to electricity using conjugated polymers and molecules rather than traditional silicon materials. It provides background on the need for alternative energy sources due to growing energy demand and limited fossil fuels. Organic solar cells absorb light, transfer charges, transport the separated charges, and collect them. Researchers have achieved a new record efficiency of 15.6% for a graphene-based solar cell that uses titanium oxide, graphene, and perovskite, manufactured via low-temperature solution deposition. While organic solar cells offer advantages like lower costs and flexibility, their efficiency remains below silicon cells and they suffer from degradation. Further improving charge carrier transport and interface engineering is needed to enhance performance.
Recommended
Developments in organic solar cells
Organic solar cells have evolved from single layer cells with efficiencies of 0.1% to bulk heterojunction cells that can achieve 10% efficiency. They offer advantages like low-cost deposition techniques, flexibility, and semitransparency but have limitations such as low charge carrier mobility. Future areas of focus include developing tandem cells, incorporating plasmonic structures to enhance light absorption, and exploring ternary blends and cascade charge transfer mechanisms to overcome limitations. With continued advances, organic solar cells show promise to provide a high efficiency, low-cost alternative to traditional silicon photovoltaics.
Organic solar cell
This document discusses organic solar cells as a more efficient and flexible alternative to traditional silicon solar cells. Organic solar cells are constructed using a hybrid of cadmium selenide nano-rods dispersed in an organic polymer layer sandwiched between electrodes. The nano-rods absorb sunlight and produce electron-hole pairs, which are conducted through the polymer layer to the electrodes to generate electricity. Organic solar cells have advantages over traditional cells in that they are more efficient, compact, lightweight, flexible, inexpensive to produce, and can harness invisible light. However, they currently have shorter lifespans and require more maintenance than conventional cells.
Organic Solar Cell
Organic solar cells offer several advantages over traditional silicon-based solar cells including lower manufacturing costs due to easier processing of organic molecules, mechanical flexibility, and potential for large-scale production. They consist of a donor material like a polymer and an acceptor material like fullerene arranged in a bulk heterojunction to separate photo-generated electrons and holes. While organic solar cells are not as efficient as silicon cells today, their lower costs and flexibility make them a promising renewable energy technology.
differantes types of organic solar cells and applications
in this work you will fond a full discription of the technologie of the organic solar cells:
we distanguish 3 types of organic solar cells
sigel layer organic pv
bi-layer hyterojunction solar cells
bulk hyterojunction solar cells
you will fond the adventeges and the desadventeges of eatch one of them
some application of the organic solar cells
Organic photovoltaic cells : OPV
1. Organic photovoltaic (OPV) solar cells aim to provide an abundant and low-cost photovoltaic solution compared to classical silicon solar cells.
2. OPV cells work by absorbing light which creates an exciton, an electron-hole pair, that is separated at the donor-acceptor interface.
3. The three main types of OPV cells are single layer, bilayer, and bulk heterojunction, with bulk heterojunction having the highest efficiencies due to an intermixed donor-acceptor layer.
Organic Photovoltaic Devices (OPVs)
Lecture delivered by Ross Hatton, University of Warwick. Super Solar Research Methods in PV, University of Liverpool, April 2016.
Organic solar cell material
Organic solar cells are a type of photovoltaic cell that uses conductive organic polymers or small organic molecules to absorb light and transport charges. They typically consist of two semiconducting layers made of polymers or other flexible materials. When light is absorbed, an exciton is generated which splits into an electron and hole. The electron then moves to one layer while the hole moves to the other, generating electricity. Common organic materials used in these cells include polymers like P3HT, small molecules like PCBM, and various conducting and semiconducting organic compounds.
Polymer Solar Cell
This document discusses organic solar cells, which convert light to electricity using conjugated polymers and molecules rather than traditional silicon materials. It provides background on the need for alternative energy sources due to growing energy demand and limited fossil fuels. Organic solar cells absorb light, transfer charges, transport the separated charges, and collect them. Researchers have achieved a new record efficiency of 15.6% for a graphene-based solar cell that uses titanium oxide, graphene, and perovskite, manufactured via low-temperature solution deposition. While organic solar cells offer advantages like lower costs and flexibility, their efficiency remains below silicon cells and they suffer from degradation. Further improving charge carrier transport and interface engineering is needed to enhance performance.
Organic photovoltaic
Organic photovoltaic cells use organic polymers or small organic molecules to convert sunlight into electricity through the photovoltaic effect. They have several advantages over traditional silicon solar cells, including flexibility, low production costs, and being Earth-abundant. However, their efficiency is generally lower. There are several types of organic solar cell structures, including single layer, bilayer, and bulk heterojunction, with bulk heterojunction being the most commonly used today. Organic photovoltaic cells show promise for applications like building integration and consumer electronics.
Polymeric materials for organic solar cells
This document discusses polymeric materials used in organic solar cells. It explains that organic solar cells use organic polymers and small molecules to absorb light and transport charges. Common donor polymers mentioned include phthalocyanine and poly(3-hexylthiophene), while acceptor examples provided are perylene, perylene-3,4,9,10-tetracarboxylic dianhydride, phenyl-C61-butyric acid methyl ester, and buckminsterfullerene. The document outlines the charge transfer process in organic solar cells and advantages of using polymeric materials, such as low cost and flexibility. Hazards and properties are also noted for some mentioned materials.
organic solar cell
This document provides an overview of organic solar cells. It discusses that organic solar cells are more economical and flexible than traditional silicon solar cells. The structure of organic solar cells is described, including the light-absorbing donor polymer layer, the electron-acceptor fullerene layer, and electrodes. Applications mentioned include phone chargers, small electronics, and building-integrated photovoltaics. Manufacturing of organic solar cells has lower costs than silicon cells due to using thinner films of molecules. While organic solar cells have disadvantages like lower efficiency and shorter lifetimes than silicon, they provide benefits such as flexibility, low weight, and reduced environmental impact.
Organic / Polymer solar cells
Organic Solar cells are the future.They can be easily manufactured. also flexible; can be carried around in pockets, and 1000 times thinner to silicon cells.
Organic Solar Cell by Suraj Bhakta
Its all About Solar Cell which is completely Made of Organic Compound and it is most flexible , cheaper and high effeiciency.
Organic Solar Cells
Vishal Shrotriya presented on low cost manufacturing of organic solar cells. He discussed Solarmer's development of roll-to-roll processing for high throughput, low temperature production of organic photovoltaic cells. Through new donor and acceptor materials, efficiencies over 8% have been achieved in single cells and modules. Testing has shown stability of over 2500 hours under continuous illumination. The talk outlined a roadmap for commercializing organic solar cell products, starting with applications in portable power and building integrated photovoltaics, with a potential market of hundreds of millions of dollars annually.
solar cells
The document discusses the history and development of solar power as an alternative renewable energy source. It describes how concerns over dependency on non-renewable energy in the 1970s led scientists to research new sources. Their work established solar power generated through concentrating solar and photovoltaic methods. The document then provides details on the technology behind solar cells and panels, and how they are able to convert sunlight into usable electricity through photovoltaic effects and semiconductor materials.
Fabrication of perovskite solar cell
Project on Methyl Ammonium Lead Iodide solar cell with Copper iodide as hole transport layer and zinc oxide as electron transport layer.
Introduction to Pv cell
Solar cells convert sunlight directly into electricity through semiconducting materials that are sensitive to light. There are three main types of solar cells: monocrystalline, polycrystalline, and thin film. PV systems can operate on or off the main electric grid. The success of a PV system depends on factors like location, system size matching the application, cell and component quality, proper installation and maintenance. PV systems have advantages like being quiet, zero emissions and able to generate power anywhere, but also have disadvantages like high initial costs and needing regular cleaning.
Solar cell ppt....uv
The document discusses various types of solar cells, including their fundamentals, novel structures, thin film cells, and next generation technologies. It describes the basic working principle of solar cells and highlights some appealing characteristics like being pollution-free and having high power-to-weight ratios. Different cell structures are examined, such as those using back surface fields, Schottky barriers, and grooved junctions. Thin film technologies using cadmium telluride and inverted designs are also reviewed. The document concludes by exploring tandem cells, designs using multiple electron-hole pairs, multiband approaches, and thermophotonic and thermophotovoltaic cells as promising future solar cell technologies.
Solar energy presentation what factors does neeed to it
Solar energy is a renewable energy source that can be converted into other uses such as electricity and heat. The sun provides vast amounts of energy to the Earth, with the potential to meet energy demand many times over. Solar technologies include photovoltaics (solar panels), concentrating solar power, and solar heating. Solar energy systems take advantage of the sun's radiation to provide electricity and hot water for homes, businesses, schools, and other facilities.
Generations of solar cells
This document discusses different generations of solar cells. It begins by explaining the importance of renewable energy sources like solar due to climate change and depletion of fossil fuels. It then describes first generation solar cells, which use monocrystalline and polycrystalline silicon, as well as their advantages of high efficiency and understanding, but also their disadvantages of high cost. Second generation cells, like amorphous silicon and thin-film technologies, aimed to reduce costs but had issues with performance degradation and use of rare materials. Overall, second generation solar cells did not prove to be viable silicon alternatives.
Solar cell
Solar cells convert sunlight directly into electricity through a process where photons knock electrons loose from semiconductor materials like silicon. The electrons then flow as a current that can be drawn off the top and bottom contacts of the solar cell to be used as power. Solar cells provide renewable and sustainable power for applications from small electronics to large solar panel arrays. They are particularly useful for powering remote devices without access to electricity grids. The most efficient solar cells are made from single crystalline silicon, with efficiencies up to 25%, while thin film technologies continue advancing toward flexible solar cells and improved efficiency.
Perovskite solar cells
This document discusses perovskite solar cells. It begins with an overview of different photovoltaic technologies and efficiency charts. It then discusses the properties of perovskite materials and various device architectures for perovskite solar cells. The document outlines fabrication methods for perovskite solar cells, including potential replacements for lead and printed or roll-to-roll approaches. It concludes with a discussion of the commercialization potential and future outlook of perovskite solar cells.
Solar cells
This ppt contains the definition of solar cells, principle, construction, working and solar cell array, solar cell power plant and limitations.
Plastic solar cells
An organic solar cell or plastic solar cell is a type of photovoltaic that uses organic electronics, a branch of electronics that deals with conductive organic polymers or small organic molecules, for light absorption and charge transport to produce electricity from sunlight by the photovoltaic effect. Most organic photovoltaic cells are polymer solar cells.
Thin-Film Photovoltaics R&D: Innovation, Opportunities_Ennaoui
This document discusses thin-film photovoltaics research and opportunities. It covers several topics:
- Thin-film solar cell technologies like CIGS, CdTe, and emerging materials like CZTS have higher efficiencies than earlier generations and lower production costs. Research aims to further improve efficiency and reduce costs.
- The Helmholtz-Zentrum in Berlin conducts R&D on thin-film photovoltaics including advanced materials, device concepts, and characterization techniques to develop more efficient and cost-effective solar cells.
- Issues like material scarcity for some thin-film technologies are being addressed through research into alternative materials and processes to produce solar cells on flexible substrates using less raw
Perovskite solar cells - An Introduction, By Dawn John Mullassery
Perovskite solar cells (PSCs) are a promising photovoltaic technology that has seen rapid increases in power conversion efficiency from 9.7% to over 20% in just a few years. PSCs offer advantages over other solar cell technologies in terms of cost of raw materials, fabrication, and efficiency. However, research is still needed to address challenges such as stability in the presence of moisture and the toxicity of lead used in early PSC designs. Future work aims to remove toxicity concerns and develop thin film and flexible PSC designs to enable widespread commercialization of this emerging solar technology.
Perovskite solar cells, All you need to know - Dawn John Mullassery
A presentation that includes the background, fabrication, chemistry and future of Perovskite Solar Cells!
Perovskite Solar Cells - an Introduction
Use of conventional sources of energy to generate electricity is
increasing rapidly due to growing energy demands. This is a
major cause of pollution as well and also is an environmental
concern for future. Considering this, there is lot of R&D going on in the field of alternate energy sources with recent advancements in technology. One of the most recent advancement is the perovskite solar technology in the photovoltaics industry. The power conversion efficiency of perovskite solar cells has been improved from 9.7 to 20.1% within 4 years which is the fastest advancement ever in the photovoltaic industry. Such a high photovoltaic performance can be attributed to optically high absorption characteristics of the hybrid lead perovskite materials. In this review, different perovskite materials are breifly discussed along with the fundamental details of the hybrid lead halide perovskite materials. The fabrication techniques, stability, device structure and the chemistry of the perovskite structure are also briefly described aiming for a better understanding of these materials and thus highly efficient perovskite solar cell devices. The main focus of this resarch is to understand possible methods to reduce toxicity due to lead and to improve Perovskite stability.
MultiJunctionSolarCells (1)
Multi-junction solar cells use multiple semiconductor materials with different bandgaps stacked together to absorb a wider range of the solar spectrum and achieve higher efficiencies than single-material solar cells. They are fabricated using techniques like metalorganic vapor phase epitaxy and molecular beam epitaxy to precisely control the growth of each layer for optimal bandgap and lattice matching. Current multi-junction cells can achieve efficiencies over 40% and are used in space applications, though high costs have limited terrestrial use primarily to concentrated photovoltaics. Further efficiency improvements may come from new materials like quantum dots, optimizing existing layer designs, and increasing the number of junctions to finer divide the solar spectrum.
Nano tubes technology in solar
- Carbon nanotubes are being used in solar panel technology to improve efficiency by allowing the panels to utilize infrared radiation. The nanotubes act as photoconversion sites and help transport charge carriers. This can increase theoretical efficiency to 80%.
- Double-walled carbon nanotubes are directly incorporated into thin film solar cells, creating a p-n heterojunction with silicon. Nanotubes serve as both a light absorber and charge transport layer. Initial tests show an efficiency over 1%.
- Advantages of carbon nanotube solar panels include improved efficiency, ability to operate at night, increased output voltage, and reduced material needs. However, the technology remains in the experimental stage.
More Related Content
What's hot
Organic photovoltaic
Organic photovoltaic cells use organic polymers or small organic molecules to convert sunlight into electricity through the photovoltaic effect. They have several advantages over traditional silicon solar cells, including flexibility, low production costs, and being Earth-abundant. However, their efficiency is generally lower. There are several types of organic solar cell structures, including single layer, bilayer, and bulk heterojunction, with bulk heterojunction being the most commonly used today. Organic photovoltaic cells show promise for applications like building integration and consumer electronics.
Polymeric materials for organic solar cells
This document discusses polymeric materials used in organic solar cells. It explains that organic solar cells use organic polymers and small molecules to absorb light and transport charges. Common donor polymers mentioned include phthalocyanine and poly(3-hexylthiophene), while acceptor examples provided are perylene, perylene-3,4,9,10-tetracarboxylic dianhydride, phenyl-C61-butyric acid methyl ester, and buckminsterfullerene. The document outlines the charge transfer process in organic solar cells and advantages of using polymeric materials, such as low cost and flexibility. Hazards and properties are also noted for some mentioned materials.
organic solar cell
This document provides an overview of organic solar cells. It discusses that organic solar cells are more economical and flexible than traditional silicon solar cells. The structure of organic solar cells is described, including the light-absorbing donor polymer layer, the electron-acceptor fullerene layer, and electrodes. Applications mentioned include phone chargers, small electronics, and building-integrated photovoltaics. Manufacturing of organic solar cells has lower costs than silicon cells due to using thinner films of molecules. While organic solar cells have disadvantages like lower efficiency and shorter lifetimes than silicon, they provide benefits such as flexibility, low weight, and reduced environmental impact.
Organic / Polymer solar cells
Organic Solar cells are the future.They can be easily manufactured. also flexible; can be carried around in pockets, and 1000 times thinner to silicon cells.
Organic Solar Cell by Suraj Bhakta
Its all About Solar Cell which is completely Made of Organic Compound and it is most flexible , cheaper and high effeiciency.
Organic Solar Cells
Vishal Shrotriya presented on low cost manufacturing of organic solar cells. He discussed Solarmer's development of roll-to-roll processing for high throughput, low temperature production of organic photovoltaic cells. Through new donor and acceptor materials, efficiencies over 8% have been achieved in single cells and modules. Testing has shown stability of over 2500 hours under continuous illumination. The talk outlined a roadmap for commercializing organic solar cell products, starting with applications in portable power and building integrated photovoltaics, with a potential market of hundreds of millions of dollars annually.
solar cells
The document discusses the history and development of solar power as an alternative renewable energy source. It describes how concerns over dependency on non-renewable energy in the 1970s led scientists to research new sources. Their work established solar power generated through concentrating solar and photovoltaic methods. The document then provides details on the technology behind solar cells and panels, and how they are able to convert sunlight into usable electricity through photovoltaic effects and semiconductor materials.
Fabrication of perovskite solar cell
Project on Methyl Ammonium Lead Iodide solar cell with Copper iodide as hole transport layer and zinc oxide as electron transport layer.
Introduction to Pv cell
Solar cells convert sunlight directly into electricity through semiconducting materials that are sensitive to light. There are three main types of solar cells: monocrystalline, polycrystalline, and thin film. PV systems can operate on or off the main electric grid. The success of a PV system depends on factors like location, system size matching the application, cell and component quality, proper installation and maintenance. PV systems have advantages like being quiet, zero emissions and able to generate power anywhere, but also have disadvantages like high initial costs and needing regular cleaning.
Solar cell ppt....uv
The document discusses various types of solar cells, including their fundamentals, novel structures, thin film cells, and next generation technologies. It describes the basic working principle of solar cells and highlights some appealing characteristics like being pollution-free and having high power-to-weight ratios. Different cell structures are examined, such as those using back surface fields, Schottky barriers, and grooved junctions. Thin film technologies using cadmium telluride and inverted designs are also reviewed. The document concludes by exploring tandem cells, designs using multiple electron-hole pairs, multiband approaches, and thermophotonic and thermophotovoltaic cells as promising future solar cell technologies.
Solar energy presentation what factors does neeed to it
Solar energy is a renewable energy source that can be converted into other uses such as electricity and heat. The sun provides vast amounts of energy to the Earth, with the potential to meet energy demand many times over. Solar technologies include photovoltaics (solar panels), concentrating solar power, and solar heating. Solar energy systems take advantage of the sun's radiation to provide electricity and hot water for homes, businesses, schools, and other facilities.
Generations of solar cells
This document discusses different generations of solar cells. It begins by explaining the importance of renewable energy sources like solar due to climate change and depletion of fossil fuels. It then describes first generation solar cells, which use monocrystalline and polycrystalline silicon, as well as their advantages of high efficiency and understanding, but also their disadvantages of high cost. Second generation cells, like amorphous silicon and thin-film technologies, aimed to reduce costs but had issues with performance degradation and use of rare materials. Overall, second generation solar cells did not prove to be viable silicon alternatives.
Solar cell
Solar cells convert sunlight directly into electricity through a process where photons knock electrons loose from semiconductor materials like silicon. The electrons then flow as a current that can be drawn off the top and bottom contacts of the solar cell to be used as power. Solar cells provide renewable and sustainable power for applications from small electronics to large solar panel arrays. They are particularly useful for powering remote devices without access to electricity grids. The most efficient solar cells are made from single crystalline silicon, with efficiencies up to 25%, while thin film technologies continue advancing toward flexible solar cells and improved efficiency.
Perovskite solar cells
This document discusses perovskite solar cells. It begins with an overview of different photovoltaic technologies and efficiency charts. It then discusses the properties of perovskite materials and various device architectures for perovskite solar cells. The document outlines fabrication methods for perovskite solar cells, including potential replacements for lead and printed or roll-to-roll approaches. It concludes with a discussion of the commercialization potential and future outlook of perovskite solar cells.
Solar cells
This ppt contains the definition of solar cells, principle, construction, working and solar cell array, solar cell power plant and limitations.
Plastic solar cells
An organic solar cell or plastic solar cell is a type of photovoltaic that uses organic electronics, a branch of electronics that deals with conductive organic polymers or small organic molecules, for light absorption and charge transport to produce electricity from sunlight by the photovoltaic effect. Most organic photovoltaic cells are polymer solar cells.
Thin-Film Photovoltaics R&D: Innovation, Opportunities_Ennaoui
This document discusses thin-film photovoltaics research and opportunities. It covers several topics:
- Thin-film solar cell technologies like CIGS, CdTe, and emerging materials like CZTS have higher efficiencies than earlier generations and lower production costs. Research aims to further improve efficiency and reduce costs.
- The Helmholtz-Zentrum in Berlin conducts R&D on thin-film photovoltaics including advanced materials, device concepts, and characterization techniques to develop more efficient and cost-effective solar cells.
- Issues like material scarcity for some thin-film technologies are being addressed through research into alternative materials and processes to produce solar cells on flexible substrates using less raw
Perovskite solar cells - An Introduction, By Dawn John Mullassery
Perovskite solar cells (PSCs) are a promising photovoltaic technology that has seen rapid increases in power conversion efficiency from 9.7% to over 20% in just a few years. PSCs offer advantages over other solar cell technologies in terms of cost of raw materials, fabrication, and efficiency. However, research is still needed to address challenges such as stability in the presence of moisture and the toxicity of lead used in early PSC designs. Future work aims to remove toxicity concerns and develop thin film and flexible PSC designs to enable widespread commercialization of this emerging solar technology.
Perovskite solar cells, All you need to know - Dawn John Mullassery
A presentation that includes the background, fabrication, chemistry and future of Perovskite Solar Cells!
Perovskite Solar Cells - an Introduction
Use of conventional sources of energy to generate electricity is
increasing rapidly due to growing energy demands. This is a
major cause of pollution as well and also is an environmental
concern for future. Considering this, there is lot of R&D going on in the field of alternate energy sources with recent advancements in technology. One of the most recent advancement is the perovskite solar technology in the photovoltaics industry. The power conversion efficiency of perovskite solar cells has been improved from 9.7 to 20.1% within 4 years which is the fastest advancement ever in the photovoltaic industry. Such a high photovoltaic performance can be attributed to optically high absorption characteristics of the hybrid lead perovskite materials. In this review, different perovskite materials are breifly discussed along with the fundamental details of the hybrid lead halide perovskite materials. The fabrication techniques, stability, device structure and the chemistry of the perovskite structure are also briefly described aiming for a better understanding of these materials and thus highly efficient perovskite solar cell devices. The main focus of this resarch is to understand possible methods to reduce toxicity due to lead and to improve Perovskite stability.
What's hot (20)
Solar energy presentation what factors does neeed to it
Solar energy presentation what factors does neeed to it
Thin-Film Photovoltaics R&D: Innovation, Opportunities_Ennaoui
Thin-Film Photovoltaics R&D: Innovation, Opportunities_Ennaoui
Perovskite solar cells - An Introduction, By Dawn John Mullassery
Perovskite solar cells - An Introduction, By Dawn John Mullassery
Perovskite solar cells, All you need to know - Dawn John Mullassery
Perovskite solar cells, All you need to know - Dawn John Mullassery
Similar to Courtney Klosterman Presentation
MultiJunctionSolarCells (1)
Multi-junction solar cells use multiple semiconductor materials with different bandgaps stacked together to absorb a wider range of the solar spectrum and achieve higher efficiencies than single-material solar cells. They are fabricated using techniques like metalorganic vapor phase epitaxy and molecular beam epitaxy to precisely control the growth of each layer for optimal bandgap and lattice matching. Current multi-junction cells can achieve efficiencies over 40% and are used in space applications, though high costs have limited terrestrial use primarily to concentrated photovoltaics. Further efficiency improvements may come from new materials like quantum dots, optimizing existing layer designs, and increasing the number of junctions to finer divide the solar spectrum.
Nano tubes technology in solar
- Carbon nanotubes are being used in solar panel technology to improve efficiency by allowing the panels to utilize infrared radiation. The nanotubes act as photoconversion sites and help transport charge carriers. This can increase theoretical efficiency to 80%.
- Double-walled carbon nanotubes are directly incorporated into thin film solar cells, creating a p-n heterojunction with silicon. Nanotubes serve as both a light absorber and charge transport layer. Initial tests show an efficiency over 1%.
- Advantages of carbon nanotube solar panels include improved efficiency, ability to operate at night, increased output voltage, and reduced material needs. However, the technology remains in the experimental stage.
Electrospinning
Electrospinning is a technique that uses electrical charges to draw thin fibers from liquids or melts. It can produce fibers as small as 10 nanometers in diameter. Common applications include filters, protective clothing, tissue engineering scaffolds, and drug delivery systems. Emerging applications include wearable power sources and wound dressings made from genetically engineered collagen. Electrospinning offers a versatile way to manufacture nanofibers and fabric structures with potential applications across many industries.
Plastic electronics
The document discusses plastic electronics and how plastics can be made conductive. It begins by explaining how plastics were traditionally considered insulators but can become conductive through doping, which involves removing or adding electrons. This allows for conjugated double bonds that allow electron mobility. Common conductive plastics include polyacetylene and pentacene. Applications discussed include plastic LEDs, transistors, solar cells, and lasers. Plastic electronics offer advantages over silicon like lower costs, flexibility, and being easier to manufacture at ordinary temperatures and pressures. The summary highlights key applications and how doping makes plastics conductive.
Silicon Based PV Cells
Silicon based PV cells work by converting light energy into electrical energy through a doping process that creates a p-n junction in silicon. The doping process involves adding atoms with different numbers of electrons to create an imbalance and charge on the silicon material. This can be done through ion implantation or diffusion of boron to create a positive charge or arsenic/phosphorus to create a negative charge. When light hits the p-n junction, electrons flow from the n-junction to the p-junction, creating an electric current.
research in solar cell
Perovskite solar cells have increased in efficiency from below 5% in 2009 to over 20% in 2014, making them a promising solar cell technology. Researchers have discovered ways to improve perovskite solar cells using liquid inks, upconversion and downconversion techniques, light-absorbing dyes, quantum dots, organic and polymer materials, and adaptive and nanostructured surfaces. These techniques aim to lower the cost and increase the efficiency of solar cells.
Advance Solar Cells and Printed Solar Cell A Review
Solar cell technology begin with first generation and third generation solar cells is discussed here by considering different advanced materials on which these technologies are based. The efficiencies attained with different new age solar cell technologies, limitations in their commercial application is overcome with the new technology used in solar cell. This paper is an overview of the advances technology used in solar cell and printed solar cell. Sukhjinder Singh | Nitish Palial | Rohit Kumar "Advance Solar Cells and Printed Solar Cell: A Review" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-7 | Issue-5 , October 2023, URL: https://www.ijtsrd.com/papers/ijtsrd59981.pdf Paper Url: https://www.ijtsrd.com/engineering/electrical-engineering/59981/advance-solar-cells-and-printed-solar-cell-a-review/sukhjinder-singh
Moletronics
Molecular electronics utilizes single molecules or collections of molecules as electronic components. It offers the potential to continue shrinking circuits beyond the limits of silicon as dictated by Moore's law. Molecular electronics relies on organic polymers, polyphenylene chains, and carbon nanotubes as its molecular building blocks. These molecules can act as wires, transistors, diodes, and other circuit elements. Successful demonstrations include organic field-effect transistors and molecular memory chips. Molecular electronics promises greater miniaturization, lower power usage, and new applications like flexible electronics if the challenges of precise fabrication and experimental verification can be overcome.
U01061151154
This document provides an overview and comparison of three types of solar cells: crystalline silicon solar cells, plasmonic solar cells, and dye-sensitized solar cells. Plasmonic solar cells use metal nanoparticles to increase light absorption and scattering in thin-film solar cells. Dye-sensitized solar cells separate the functions of light absorption and charge transport to provide a potentially low-cost alternative to traditional p-n junction photovoltaics. The document discusses the operating principles, advantages, and design considerations of plasmonic and dye-sensitized solar cells, with a brief overview of conventional crystalline silicon photovoltaics provided for context.
Comparison of Different types of Solar Cells – a Review
IOSR Journal of Electrical and Electronics Engineering(IOSR-JEEE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of electrical and electronics engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in electrical and electronics engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
solar technology
This document summarizes a presentation on using carbon nanotubes in solar panel technology. It discusses how carbon nanotubes can improve the efficiency of solar cells compared to traditional organic solar cells. Carbon nanotubes are classified as single-walled or multi-walled nanotubes. Carbon nanotubes and a polymer called MEH-PPV-CN are used as materials in constructing a carbon solar cell. The cell works by generating electrons when exposed to light, which are transferred between energy bands and build up voltage. Adding carbon nanotubes can increase the cell's efficiency by improving light absorption and electron transport. Potential applications include using carbon nanotubes in the photoactive layer or as transparent electrodes.
solar technology
Solar energy can be harnessed using various technologies such as solar heating, solar photovoltaics, and solar thermal electricity. Photovoltaic cells convert sunlight directly into electricity using semiconducting materials like silicon. Several photovoltaic cells connected together form solar panels, which can be installed on rooftops or in large solar farms. Solar thermal technologies use sunlight to generate thermal energy or heat water/fluids, which can then be used to produce electricity through steam turbines or engines. Common solar thermal collector designs include parabolic troughs, power towers, and dish systems.
Porous carbon in Supercapacitor Shameel Farhan 090614
- The document discusses the history and development of supercapacitors from the 1950s to current research. It provides an overview of how supercapacitors work and their advantages over batteries, including higher power densities and greater cycle life. Current research is focused on improving energy density and reducing costs by developing new electrode materials like graphene.
cnt ppt
This document discusses the use of carbon nanotubes in solar panels to improve efficiency. It provides background on solar panels and carbon nanotubes, explaining their properties. It then details the history of carbon nanotube solar panels, how they are constructed, and how double-walled carbon nanotubes can be used as both light absorbers and charge carriers. Using carbon nanotubes allows solar panels to utilize infrared light and increase efficiency to potentially 80%. Their properties like high mobility and strength make them suitable for more efficient solar energy conversion.
Pdoc
This document discusses polymer electronics (polytronics), including how polymers can be made conductive through doping, and potential applications like flexible displays and circuits. Key applications discussed include thin film transistors for flat panel displays, which can be printed using techniques like inkjet printing to potentially lower costs compared to silicon-based electronics. The document also describes ongoing research efforts to optimize polymer materials and printing techniques to improve performance.
Nuclear micro battery
The document summarizes a student's paper on nuclear micro-batteries. It discusses how nuclear micro-batteries provide a long-lasting, compact power source using radioactive decay. The mechanisms of betavoltaics and direct charging generators are described. Various isotopes are considered for use, and incorporation into MEMS devices and applications like medical implants, sensors, and mobile devices are discussed. Concerns around waste disposal are addressed. The conclusion is that nuclear micro-batteries show promise in applications requiring long-lasting power.
Maria Burka - Chemical Engineering in the 21st Century
The document discusses how chemical engineering is evolving to encompass work at various scales from nano to mega, and how the discipline has embraced fields like biological engineering, biotechnology, and biomedical engineering. It also outlines some of the major challenges facing humanity in the coming decades like energy, water, food, and health that chemical engineering is well-positioned to help address through interdisciplinary work.
Organic solar cells the exciting interplay of excitons and nano-morphology
1) The document summarizes organic solar cells, which use a bulk heterojunction of a conjugated polymer donor and fullerene acceptor. When light is absorbed, excitons are formed that must dissociate at the donor-acceptor interface into free charges.
2) The bulk heterojunction morphology, consisting of an interpenetrating network of the donor and acceptor materials, allows more excitons to dissociate since the interface is throughout the volume. This leads to higher efficiencies than simple bilayer cells.
3) Efficiencies of over 6% have been achieved but further work is needed to improve stability and lower costs for organic solar cells to become commercially viable. Optimization of
Photovoltaic cell1
Solar photovoltaic cells convert light energy from photons into electrical energy through the photovoltaic effect. When photons hit the solar cell, they excite electrons which are then pulled away before they can relax, generating a current. The efficiency and performance of solar cells depends on factors like material bandgap, cell temperature, and resistance. Different cell types like single crystal, polycrystalline, and amorphous thin films are fabricated through various processes to optimize these factors and harness solar energy on a large scale.
PSU TPV Research 2002
This document provides an initial test report of Pittsburg State University's fossil fuel burning thermophotovoltaic system. It summarizes the objectives, which were to determine suitable emitter materials, heating fuels, and test the efficiency of the system using a fossil fuel heated emitter. The report describes using a silicon carbide rod emitter heated by oxyacetylene fuel, and measuring the temperature distribution and efficiency. It presents results on the temperature profile of the emitter and efficiency at different temperatures. The conclusions recommend further work to optimize the system.
Similar to Courtney Klosterman Presentation (20)
Advance Solar Cells and Printed Solar Cell A Review
Advance Solar Cells and Printed Solar Cell A Review
Comparison of Different types of Solar Cells – a Review
Comparison of Different types of Solar Cells – a Review
Porous carbon in Supercapacitor Shameel Farhan 090614
Porous carbon in Supercapacitor Shameel Farhan 090614
Maria Burka - Chemical Engineering in the 21st Century
Maria Burka - Chemical Engineering in the 21st Century
Organic solar cells the exciting interplay of excitons and nano-morphology
Organic solar cells the exciting interplay of excitons and nano-morphology
More from Case Western Reserve University - College of Arts and Sciences
Ian Curtin
The document summarizes research into synthesizing and characterizing zinc tin nitride (ZnSnN2). Key points:
1) ZnSnN2 is analogous to indium nitride and could have a band gap of 1 eV, but has not been successfully synthesized yet.
2) The researcher grew zinc-tin alloys with varying compositions and exposed them to nitrogen plasma in an attempt to form ZnSnN2.
3) While ZnSnN2 was not conclusively formed, one sample showed possible trace amounts and signs of crystallinity. More analysis is still needed to confirm the results.
Nicholas Goble
This document summarizes research on modeling the equilibrium shape of a dielectric droplet placed in a uniform electric field. The researchers used a third-order polynomial approximation to represent the shape of the droplet and calculated the total energy as a function of surface energy and electrostatic energy. They were able to determine the shape of the droplet for given dielectric properties and electric field strength. Their results showed that pointed ends develop when a parameter reaches zero, and there is hysteresis in the system depending on the starting point of the energy minimization calculation. The relationship between electric field strength and the angle of pointed ends was found to be nonlinear.
Drew Kerr
Drew Kerr's document discusses boundary conditions in quantum mechanics and their potential application to braneworld cosmology. It introduces braneworld theory and standard quantum mechanics concepts like the Schrodinger equation. It then examines non-standard boundary conditions for a particle in a box, which could allow a particle to be bound at the boundary. A lattice model is constructed whose continuum limit has unusual boundary conditions. The document suggests these non-standard boundary conditions may help explain braneworld theory and identifies writing a paper on boundary conditions in quantum mechanics as a future goal.
Krystina Krylova
The document summarizes the history and current state of optical SETI (OSETI), which searches for signals from extraterrestrial intelligence using lasers and optical telescopes. It notes that OSETI efforts began in the 1960s and discusses various university-based OSETI groups established between 1993-2007 using different detector setups, from elementary detectors to mega detectors composed of many elementary units. It describes simulations of night sky background to optimize detector sensitivity and thresholds. Current work involves building improved double and quad mega detectors to better eliminate background and future directions will depend on available funding.
Vincent DeGeorge
This document discusses how the performance of organic solar cells is affected by the incident angle of sunlight. It presents experimental data showing how reflection spectra change with varying incidence angles, and compares this to simulations. Key findings include:
1) Simulation and experiment agree that most spectral features remain largely unchanged across a range of incidence angles, though absorption peaks can shift up to 40nm.
2) A generalized simulation model is developed that can predict reflection spectra for any incident angle, matching experimental observations.
3) While performance varies some with changing sunlight angles through the day and seasons, organic solar cells maintain efficiency relatively well compared to conventional silicon cells.
Sabrina Skinner
This document discusses the fabrication and characterization of molybdenum disulfide (MoS2) quantum wells. Thin layers of MoS2 act as quantum wells where electrons and holes are confined in two dimensions. Mechanical cleavage, also known as the Scotch tape method, is used to isolate few and single layers of MoS2. Photoluminescence measurements show that gold quenches the photoluminescence of monolayer MoS2 more strongly than silicon dioxide. This effect is attributed to MoS2's behavior as a quantum well where carriers are confined.
Dillon Walker
This document discusses using hyper-Rayleigh scattering to measure nonlinear optical properties of materials for applications in fiber optic data transmission. It describes using a femtosecond titanium-sapphire laser and single-photon counting techniques to distinguish hyper-Rayleigh scattering signals from competing multi-photon fluorescence signals in order to accurately measure second-order nonlinear optical coefficients.
Krysta Boccuzzi
The document summarizes an experiment investigating the effect of carbon nanotubes on the chirality of liquid crystals. Researchers prepared liquid crystal cells by coating glass with an alignment polymer and dispersing carbon nanotubes in the liquid crystal. They observed that the addition of carbon nanotubes induced chirality in the liquid crystal, even though the liquid crystal on its own was non-chiral. Further experiments ruled out the possibility of impurities or artifacts causing the effect. The researchers concluded that the carbon nanotubes were able to transfer their own intrinsic chirality to the liquid crystal.
Kemar James
The document describes a spark purification system used to purify xenon gas for dark matter detection experiments. It uses a spark tube with a titanium electrode to generate sparks, which produce titanium dioxide particles that reduce oxygen impurities in the xenon. Testing showed that curvature of the electrode and geometry like strips or threads affected the breakdown voltage. The system successfully purified xenon at lower voltages than a standard spark tube. Purified xenon allows longer electron drift paths for detecting dark matter interactions in detectors like LUX.
Megan Van Vleet Presentation
The document discusses the removal of Krypton-85 from Xenon gas in order to reduce radioactive backgrounds for the Large Underground Xenon (LUX) dark matter detector. Krypton-85 is present in trace amounts in air and Xenon gas. The system works by flowing a carrier gas like helium through an adsorption charcoal column, where molecules of Xenon and Krypton separate due to differing adsorption constants, removing the Krypton. It is being scaled up for the 350 kg of Xenon in LUX, including a larger charcoal column and storage vessel.
Lauren Cantley Presentation
The document discusses the growth of ZnSnN2, a group II-IV nitride semiconductor. It provides background on group II-IV nitrides and their potential applications. It then details experimental efforts to synthesize ZnSnN2 using a high vacuum plasma system, including considerations for suppressing zinc evaporation and removing zinc oxide layers. Initial growth attempts at 400°C and 500°C are reported, with the lower temperature growth potentially yielding ZnSnN2 but requiring further analysis. Overall progress is made but full optimization of growth conditions is still needed.
Leila Jewell Presentation
Scintillation counters are used in cosmic ray detection by registering secondary particles produced when cosmic rays interact with Earth's atmosphere. The document describes a muon telescope experiment using two scintillation counters in coincidence with a photomultiplier tube to study muons in a specific area. While the scintillation counters provided an accurate method for muon detection, a new scintillator was needed as testing revealed issues with the current material.
Kaytlin Brinker Presentation
Kaytlin Brinker modeled proton exchange membrane fuel cells by developing equations to describe the charge distribution in the Stern layer and diffuse layer of the membrane. Her results showed that including the charge imbalance in the membrane is important for calculating fuel cell properties accurately. For future work, she plans to use molecular modeling software to simulate proton diffusion in Nafion under varying hydration conditions and predict transport properties from a theoretical diffusion model.
Jermaine Taylor Presentation
Experimental detectors are being developed to search for signals from extraterrestrial intelligence at optical wavelengths using lasers, motivated by the possibility that civilizations may communicate over interstellar distances with nanosecond laser pulses. The proposed design involves an optical telescope with multiple Fresnel lenses in a 3x3 array, each focusing light onto an array of photomultiplier tubes to detect any rapid flashes that could indicate laser pulses from space. The goal is to create a low-cost system that can monitor regions of the sky continuously over long periods with minimal human involvement.
Jason Mast Presentation
This document summarizes two methods for fabricating suspended nanowire structures. Method 1 involves carving trenches in silicon dioxide and dropping nanowires over the trenches. Method 2 embeds nanowires between layers of photoresist and creates metallic contacts. The goals are to fabricate suspended nanowire devices and test their I-V curves. While alignment was too complicated in Method 1, Method 2 successfully produced suspended nanowire structures and preliminary I-V curve measurements.
James Arnemann Presentation
This document summarizes calculations done to determine the effective masses in the semiconductor ZnGeN2. It outlines using the Full Potential LMTO method to calculate energy bands as a function of the Brillouin zone. From this, parabolas were fit to determine effective masses close to zero k. These masses were then used in a modified Wurtzite Hamiltonian to calculate the energy vs. k relationship and understand properties of ZnGeN2.
Christine Austin Presentation
The document discusses magnetic resonance imaging (MRI) technology. It describes how MRI works by using a large superconducting magnet to align protons in the body with its magnetic field. Radio frequency pulses are then used to excite the protons, causing their magnetization to precess. Coils are designed on computers and etched onto circuit boards to transmit and receive the radio signals involved in the MRI process.
Aaron Klaus Presentation
1) Fields pervaded the early universe and underwent phase transitions as the universe cooled after the Big Bang.
2) These phase transitions could have generated gravitational radiation imprinted on the cosmic microwave background that we hope to observe.
3) Simulations of scalar fields relaxing over time found they first developed topological defects like kinks before fully relaxing, radiating energy in the process.
Sustainability 101
Our Sustainability Time Line provides key dates in Case Western Reserve University's sustainability efforts over the past two decades including starting a campus recycling program in 1996, launching an energy management effort in 1998, and completing the first greenhouse gas inventory in 2008. The document defines sustainability, triple bottom line, greening, renewable energy, carbon footprint, and greenhouse gases. It provides tips for greening the office, home, and commute.
More from Case Western Reserve University - College of Arts and Sciences (19)
Recently uploaded
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
20240605 QFM017 Machine Intelligence Reading List May 2024
Everything I found interesting about machines behaving intelligently during May 2024
A tale of scale & speed: How the US Navy is enabling software delivery from l...
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Communications Mining Series - Zero to Hero - Session 1
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
20240609 QFM020 Irresponsible AI Reading List May 2024
Everything I found interesting about the irresponsible use of machine intelligence in May 2024
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
Video Streaming: Then, Now, and in the Future
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
UiPath Test Automation using UiPath Test Suite series, part 6
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Climate Impact of Software Testing at Nordic Testing Days
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
TrustArc Webinar - 2024 Global Privacy Survey
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Uni Systems Copilot event_05062024_C.Vlachos.pdf
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
Microsoft - Power Platform_G.Aspiotis.pdf
Revolutionizing Application Development
with AI-powered low-code, presentation by George Aspiotis, Sr. Partner Development Manager, Microsoft
Essentials of Automations: The Art of Triggers and Actions in FME
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
GraphSummit Singapore | Graphing Success: Revolutionising Organisational Stru...
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdf
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Presentation of the OECD Artificial Intelligence Review of Germany
Consult the full report at https://www.oecd.org/digital/oecd-artificial-intelligence-review-of-germany-609808d6-en.htm
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
Recently uploaded (20)
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!
20240605 QFM017 Machine Intelligence Reading List May 2024
20240605 QFM017 Machine Intelligence Reading List May 2024
A tale of scale & speed: How the US Navy is enabling software delivery from l...
A tale of scale & speed: How the US Navy is enabling software delivery from l...
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...
Communications Mining Series - Zero to Hero - Session 1
Communications Mining Series - Zero to Hero - Session 1
20240609 QFM020 Irresponsible AI Reading List May 2024
20240609 QFM020 Irresponsible AI Reading List May 2024
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...
UiPath Test Automation using UiPath Test Suite series, part 6
UiPath Test Automation using UiPath Test Suite series, part 6
Climate Impact of Software Testing at Nordic Testing Days
Climate Impact of Software Testing at Nordic Testing Days
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
Essentials of Automations: The Art of Triggers and Actions in FME
Essentials of Automations: The Art of Triggers and Actions in FME
GraphSummit Singapore | Graphing Success: Revolutionising Organisational Stru...
GraphSummit Singapore | Graphing Success: Revolutionising Organisational Stru...
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdf
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdf
Presentation of the OECD Artificial Intelligence Review of Germany
Presentation of the OECD Artificial Intelligence Review of Germany
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Courtney Klosterman Presentation
- 1. Solar Energy: Organic Photovoltaics Courtney Klosterman Case Western Reserve University Physics Department REU Summer Program
- 2. Outline of Presentation Big Picture Problem Background: Silicon/Organic Solar Cells What I’m looking at: Structures and Calculations Goal Matching Calculations Future Work
- 4. Prevents their widespread use to generate electricity
- 5. Most solar cells today are made of silicon in different states: crystalline, multicrystalline or amorphoushttp://www.devicedaily.com
- 7. Recombination at the junction creates a depletion region with a large built-in electric field
- 9. The polymers poly-3-hexylthiophene (P3HT) and Phenyl-C61-butyric acid methyl ester (PCBM) are mixed together to form an interpenetrating network of p and n type material called a bulk heterojunction. http://www.livescience.com http://riekemetals.thomasnet.com http://www.phys.tue.
- 11. When the exciton reaches an interface between the p and n-type materials, charge is transferred which breaks the exciton and allows charge to be extracted to the electrodes.
- 14. The absorption peak would be optimized around 50nm layer thickness of the polymer photovoltaic.
- 15. Similar to a laser cavity effect called frequency pullingITO, PV, Al ITO, PV, no cavity effect
- 17. How we make slides Use commercial ITO glass, or Sputter-coat ITO Mix Polymers together, dissolve well Spin coat polymers at various speeds Evaporate Aluminum or Sputter-coat Silver Sputter-coater Some finished Samples Evaporator
- 23. More structures with Bilayer
- 24. Look at electrical properties
- 25. Find parameters that give good absorption and electrical propertiesGlove Box System at Ohio State Organic Solar Cell IV Curve http://deibel.files.wordpress.com
- 26. Acknowledgements Kenneth D. Singer Brent Valle National Science Foundation Clips/SOURCE QUESTIONS?