Organic / Polymer solar cells
•Download as PPTX, PDF•
1 like•917 views
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.
Report
Share
Report
Share
Recommended
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 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.
Dye-Sensitized Solar Cells
This document provides an overview of dye-sensitized solar cells (DSSCs). It discusses the history, components, principles, and limitations of DSSCs. DSSCs were invented in 1991 by Brian O'Regan and Michael Gratzel. They have several advantages over conventional solar cells, including lower cost, flexibility, and semi-transparency. DSSCs consist of a photoelectrode made of titanium dioxide coated with a dye, a redox electrolyte, and a counter electrode. When light is absorbed by the dye, electrons are injected into the titanium dioxide and collected, while the dye is regenerated, allowing the cell to function. Recent developments aim to improve light absorption and stability.
Dye Sensitized Solar cell (DSSC)
This document provides an overview of dye sensitized solar cells (DSSC). It discusses the principle and working of DSSCs, including the key components - a photosensitive dye, nanostructured semiconductor (typically TiO2), redox electrolyte, and two electrodes. Upon light absorption, electrons are injected from the dye into the semiconductor. The electrolyte regenerates the oxidized dye and transports electrons between the electrodes. The document outlines the preparation, applications, and commercial potential of DSSCs, noting their advantages over silicon solar cells.
Dssc (Dye sensitized solar cell)
introduction to DSSC, Principle and working of DSSC,Component involved in DSSC, how does DSSC work?,Advantage and disadvantage of DSSC, application of DSSC.
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.
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 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.
Recommended
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 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.
Dye-Sensitized Solar Cells
This document provides an overview of dye-sensitized solar cells (DSSCs). It discusses the history, components, principles, and limitations of DSSCs. DSSCs were invented in 1991 by Brian O'Regan and Michael Gratzel. They have several advantages over conventional solar cells, including lower cost, flexibility, and semi-transparency. DSSCs consist of a photoelectrode made of titanium dioxide coated with a dye, a redox electrolyte, and a counter electrode. When light is absorbed by the dye, electrons are injected into the titanium dioxide and collected, while the dye is regenerated, allowing the cell to function. Recent developments aim to improve light absorption and stability.
Dye Sensitized Solar cell (DSSC)
This document provides an overview of dye sensitized solar cells (DSSC). It discusses the principle and working of DSSCs, including the key components - a photosensitive dye, nanostructured semiconductor (typically TiO2), redox electrolyte, and two electrodes. Upon light absorption, electrons are injected from the dye into the semiconductor. The electrolyte regenerates the oxidized dye and transports electrons between the electrodes. The document outlines the preparation, applications, and commercial potential of DSSCs, noting their advantages over silicon solar cells.
Dssc (Dye sensitized solar cell)
introduction to DSSC, Principle and working of DSSC,Component involved in DSSC, how does DSSC work?,Advantage and disadvantage of DSSC, application of DSSC.
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.
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 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.
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.
Dye sensitised solar cell
Solar cells directly convert sunlight into electricity and were first used in spacecraft. Traditional solar cells use two types of silicon sandwiched together, while newer types are still in development. Solar cells work by using photons to separate electron-hole pairs in materials like titanium dioxide.
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.
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.
DSSC
This document summarizes a presentation on dye sensitized solar cells (DSSC) given by Ashok Kumar Jangid. It describes the basic components and structure of a DSSC, which includes a titanium dioxide semiconductor, sensitizing dye, iodide redox mediator, platinum counter electrode, and glass support. The document explains that light absorption by the dye generates electron injection into the semiconductor to produce a current. Common dyes used include N3, N719, and various ruthenium-based dyes. Potential applications of DSSCs include use in buildings, agriculture, and domestic settings due to their low cost and environmental friendliness.
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
DYE SENSITIZED SOLAR CELLS
Dye-sensitized solar cells (DSSCs), also known as Gratzel cells, work by using a photo-sensitized dye to generate electricity from sunlight. DSSCs were invented in 1991 as a low-cost alternative to traditional silicon solar cells. In a DSSC, light absorption in a dye triggers electrons to inject into a semiconductor, usually titanium dioxide, where they are collected on an electrode. The electrons then travel through an external circuit to the counter electrode, producing electricity. The circuit is completed by an electrolyte that transports ions back to the dye to regenerate it. DSSCs have the potential for lower manufacturing costs than silicon cells and can be produced using solution-based processes on many different
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.
Perovskite Solar Cell
A perovskite solar cell is a type of solar cell which includes a perovskite structured compound, most commonly a hybrid organic-inorganic lead or tin halide-based material, as the light-harvesting active layer.
Nano solar cells
This document discusses how nanotechnology can improve solar cell efficiency and reduce costs. It describes how incorporating nano-scale materials like quantum dots and silicon particles into solar photovoltaic cells allows them to absorb more wavelengths of light and reduces manufacturing complexity and expenses compared to traditional silicon solar cells. The document argues that nano-solar cells have advantages like higher efficiency even in cloudy conditions, more compact size, and lower costs that could make them viable future energy sources.
Dye sensitized solar cells
Dye-sensitized solar cells (DSSCs) are a type of solar cell that uses dye molecules to absorb sunlight and convert it to electrical energy. They were invented in 1991 by Brian O'Regan and Michael Grätzel. DSSCs consist of a photo-sensitized anode, an electrolyte containing a redox couple, and a cathode. When light is absorbed by the dye, electrons are injected into the conduction band of the semiconductor and transported through the external circuit to be collected at the cathode, while the dye is regenerated through the redox shuttle. DSSCs offer advantages such as low cost, flexibility in design, and the ability to work in low light conditions. Recent research aims to
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.
Perovskite Solar Cells
This presentation summarizes history and recent development of perovskite solar cells. If you have any questions or comments, you can reach me at agassifeng@gmail.com
Solar energy and PV cells
Presentation covering almost every topic related to the title with brief explanation .
Dye sensitized solar cells
Dye sensitized solar cells (DSSCs) were invented by Brian O'Regan and Michael Gratzel at UC Berkley as a low-cost alternative to thin film solar cells. DSSCs consist of four main components: a semiconducting electrode like TiO2, a dye sensitizer that absorbs sunlight, a redox mediator like I-/I3- to restore the dye, and a counter electrode. When sunlight is absorbed by the dye, electrons are injected into the conduction band of the oxide and transported through an external circuit to the counter electrode, while the dye is regenerated by the redox mediator. Though less efficient than other solar cells currently, DSSCs offer a cheaper price
Solar Cell
Solar cells, also called photovoltaic cells, convert solar energy directly into electricity. They are most commonly made from silicon and have no moving parts. While solar cell efficiency and market growth have increased, reducing production costs remains a focus of research and development. Promising next generation technologies that may help lower costs include thin films, hot carrier cells, and cells using nanostructures or bandgap engineering of silicon.
Dye sensitized solar cells
A dye sensitized solar cell (DSSC) functions by using light absorbing dye molecules to convert sunlight into electricity through photovoltaic processes. When light is absorbed by the dye, electrons are injected into the conduction band of a nanostructured titanium dioxide layer. The electrons then travel through an external circuit, generating electricity, and are collected by a counter electrode. The oxidized dye is regenerated by electron donation from an electrolyte, allowing the process to repeat continuously. DSSCs have the advantages of being relatively inexpensive, flexible in design, and using natural dyes, making them a promising solar technology.
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.
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.
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!
solar energy
The document discusses solar cells, including their history, types, working, advantages, disadvantages, and future applications. Solar cells directly convert sunlight into electricity via the photovoltaic effect. They were first demonstrated in 1839 but saw practical use in 1954. There are three main types - monocrystalline, polycrystalline, and amorphous silicon cells - which differ in efficiency and production method. The document also describes a hybrid plastic solar cell containing cadmium selenide nanorods that absorb sunlight and generate electrons and holes to produce a current.
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.
Dye sensitised solar cell
Solar cells directly convert sunlight into electricity and were first used in spacecraft. Traditional solar cells use two types of silicon sandwiched together, while newer types are still in development. Solar cells work by using photons to separate electron-hole pairs in materials like titanium dioxide.
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.
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.
DSSC
This document summarizes a presentation on dye sensitized solar cells (DSSC) given by Ashok Kumar Jangid. It describes the basic components and structure of a DSSC, which includes a titanium dioxide semiconductor, sensitizing dye, iodide redox mediator, platinum counter electrode, and glass support. The document explains that light absorption by the dye generates electron injection into the semiconductor to produce a current. Common dyes used include N3, N719, and various ruthenium-based dyes. Potential applications of DSSCs include use in buildings, agriculture, and domestic settings due to their low cost and environmental friendliness.
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
DYE SENSITIZED SOLAR CELLS
Dye-sensitized solar cells (DSSCs), also known as Gratzel cells, work by using a photo-sensitized dye to generate electricity from sunlight. DSSCs were invented in 1991 as a low-cost alternative to traditional silicon solar cells. In a DSSC, light absorption in a dye triggers electrons to inject into a semiconductor, usually titanium dioxide, where they are collected on an electrode. The electrons then travel through an external circuit to the counter electrode, producing electricity. The circuit is completed by an electrolyte that transports ions back to the dye to regenerate it. DSSCs have the potential for lower manufacturing costs than silicon cells and can be produced using solution-based processes on many different
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.
Perovskite Solar Cell
A perovskite solar cell is a type of solar cell which includes a perovskite structured compound, most commonly a hybrid organic-inorganic lead or tin halide-based material, as the light-harvesting active layer.
Nano solar cells
This document discusses how nanotechnology can improve solar cell efficiency and reduce costs. It describes how incorporating nano-scale materials like quantum dots and silicon particles into solar photovoltaic cells allows them to absorb more wavelengths of light and reduces manufacturing complexity and expenses compared to traditional silicon solar cells. The document argues that nano-solar cells have advantages like higher efficiency even in cloudy conditions, more compact size, and lower costs that could make them viable future energy sources.
Dye sensitized solar cells
Dye-sensitized solar cells (DSSCs) are a type of solar cell that uses dye molecules to absorb sunlight and convert it to electrical energy. They were invented in 1991 by Brian O'Regan and Michael Grätzel. DSSCs consist of a photo-sensitized anode, an electrolyte containing a redox couple, and a cathode. When light is absorbed by the dye, electrons are injected into the conduction band of the semiconductor and transported through the external circuit to be collected at the cathode, while the dye is regenerated through the redox shuttle. DSSCs offer advantages such as low cost, flexibility in design, and the ability to work in low light conditions. Recent research aims to
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.
Perovskite Solar Cells
This presentation summarizes history and recent development of perovskite solar cells. If you have any questions or comments, you can reach me at agassifeng@gmail.com
Solar energy and PV cells
Presentation covering almost every topic related to the title with brief explanation .
Dye sensitized solar cells
Dye sensitized solar cells (DSSCs) were invented by Brian O'Regan and Michael Gratzel at UC Berkley as a low-cost alternative to thin film solar cells. DSSCs consist of four main components: a semiconducting electrode like TiO2, a dye sensitizer that absorbs sunlight, a redox mediator like I-/I3- to restore the dye, and a counter electrode. When sunlight is absorbed by the dye, electrons are injected into the conduction band of the oxide and transported through an external circuit to the counter electrode, while the dye is regenerated by the redox mediator. Though less efficient than other solar cells currently, DSSCs offer a cheaper price
Solar Cell
Solar cells, also called photovoltaic cells, convert solar energy directly into electricity. They are most commonly made from silicon and have no moving parts. While solar cell efficiency and market growth have increased, reducing production costs remains a focus of research and development. Promising next generation technologies that may help lower costs include thin films, hot carrier cells, and cells using nanostructures or bandgap engineering of silicon.
Dye sensitized solar cells
A dye sensitized solar cell (DSSC) functions by using light absorbing dye molecules to convert sunlight into electricity through photovoltaic processes. When light is absorbed by the dye, electrons are injected into the conduction band of a nanostructured titanium dioxide layer. The electrons then travel through an external circuit, generating electricity, and are collected by a counter electrode. The oxidized dye is regenerated by electron donation from an electrolyte, allowing the process to repeat continuously. DSSCs have the advantages of being relatively inexpensive, flexible in design, and using natural dyes, making them a promising solar technology.
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.
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.
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!
What's hot (20)
differantes types of organic solar cells and applications
differantes types of organic solar cells and applications
Perovskite solar cells, All you need to know - Dawn John Mullassery
Perovskite solar cells, All you need to know - Dawn John Mullassery
Similar to Organic / Polymer solar cells
solar energy
The document discusses solar cells, including their history, types, working, advantages, disadvantages, and future applications. Solar cells directly convert sunlight into electricity via the photovoltaic effect. They were first demonstrated in 1839 but saw practical use in 1954. There are three main types - monocrystalline, polycrystalline, and amorphous silicon cells - which differ in efficiency and production method. The document also describes a hybrid plastic solar cell containing cadmium selenide nanorods that absorb sunlight and generate electrons and holes to produce a current.
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.
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.
PLASMONIC SOLAR CELLS.pptx
Plasmonic solar cells are a type of solar cell that uses plasmons to help convert light into electricity more efficiently. They can have metal nanoparticles or a thin metal film deposited on the solar cell to scatter light through the material. This allows the solar cell to absorb more light and potentially increase efficiency and reduce material costs compared to traditional solar cells. The design varies but commonly uses metal structures to trap light and generate electric fields that excite electrons in the semiconductor to produce a photocurrent.
solar__c123_ppt.pptx
The document discusses the history, types, structure, and working of solar cells. It covers:
- The photovoltaic effect was first discovered in 1839 by Edmond Becquerel.
- The main types of solar cells are amorphous silicon, concentrated photovoltaic, and crystalline silicon.
- A solar cell uses sunlight to generate electricity, requiring the absorption of light to raise electrons to a higher energy state and the movement of electrons through an external circuit.
- Research areas include nanocrystalline solar cells, thin film processing, and multijunction solar cells to improve performance and lower costs.
24 ijaprr vol1-3-32-37nasir
Hot Planet Energy: A Comparative Study of Various
Solar Cells and their Analysis
Mohammad Haider and Dr. Naasir Kamaal Khan
A review about various types of solar panels
The document summarizes information about flexible solar panels. Flexible solar panels are made from thin, lightweight, and flexible materials compared to traditional rigid panels. They can be installed on curved surfaces and rooftops without additional mounting hardware. The document discusses the materials used in flexible solar panels including flexible substrates like plastic and metal foils, as well as active semiconductor materials like amorphous silicon, CIGS, and organic semiconductors. It provides details on the working principles of flexible photovoltaic cells and the basic structure of a flexible solar cell.
-11084-O6C54c4.pdf
Konark Institute of Science and Technology discusses infrared plastic solar cells. The cells use nanotechnology and quantum dots combined with a polymer to harness infrared rays from sunlight for energy, making them potentially 5 times more efficient than conventional solar cells. The plastic solar cells are also flexible, lightweight and compact, allowing them to be painted on surfaces like cars to recharge batteries. While initial costs are high, the technology could eventually provide a clean renewable energy source for portable electronics.
Infrared Plastic Solar Cell
Konark Institute of Science and Technology discusses infrared plastic solar cells. The cells use nanotechnology and quantum dots combined with a polymer to harness infrared rays from sunlight for energy, making them potentially 5 times more efficient than conventional solar cells. The plastic solar cells are also flexible, lightweight and compact, allowing them to be painted on surfaces like cars to recharge batteries. While initial costs are high, the technology could eventually provide a clean renewable energy source for portable electronics.
CIVE685_SolarPotovoltaics_07Oct20-Updated.pdf
The document discusses solar photovoltaics (PV), which directly convert sunlight into electricity using solar cells. It provides a history of PV development and describes the basic physical principles, including how doping silicon creates p-type and n-type semiconductors which form a p-n junction in solar cells. When photons interact with the junction, electrons are excited and electricity is generated. The document outlines different PV technologies like monocrystalline, polycrystalline, and thin film solar cells as well as their manufacturing processes and comparisons. It also briefly discusses the balance of system components needed for a complete solar PV system.
Niraj seminar
Low maintenance, long lasting sources of energy
Non-polluting and silent sources of electricity
Provides cost-effective power supplies for people remote from the main electricity grid
Convenient and flexible source of small amounts of power.
Renewable and sustainable power, as a means to reduce global warming
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
solar cell by jerox
The document is a seminar report on solar cells presented by Jetha Ram Gousai at Sardar Vallabhbhai National Institute of Technology. It discusses the history and development of solar cell technology, focusing on the basic physics and manufacturing process of crystalline silicon solar cells. The report covers the purification of silicon, production of silicon ingots and wafers, doping process to create p-type and n-type silicon, screen printing electrodes, and assembly into solar modules.
Infrared plastic solar cell
This document discusses infrared plastic solar cells that use nanotechnology to harness energy from infrared light. It can work even on cloudy days. The cell contains a layer of nano rods dispersed in a polymer sandwiched between electrodes. When light is absorbed, electrons are generated and travel through the nano rods to be collected at the electrodes, producing a current. These plastic solar cells have potential applications such as powering devices, cars, and may eventually supply power needs through large solar farms. However, their high cost currently limits widespread use.
english po.pdf
This document provides a history of solar panels from 1839 when the photovoltaic effect was first observed up until modern applications. It discusses key inventors such as Becquerel, Smith, Fritts, and Ohl who made early breakthroughs. The principles of solar panels using silicon cells are explained along with the major types of panels. Merits include being environmentally friendly and having low maintenance, while demerits include limited nighttime use and high upfront costs. Future applications include large solar farms and use in space.
Solar cell presentation
This presentation provides an overview of solar cells. It defines a solar cell as a structure that converts solar energy directly into DC electricity using the photoelectric effect. The presentation discusses the history of solar cells, including their development by Bell Labs scientists in 1954 using silicon p-n junctions. It also covers the basics of how solar cells work using a p-n junction and semiconductor doping, and describes the main types of solar cells as monocrystalline, polycrystalline, and amorphous silicon cells. Applications of solar cells discussed include use in satellites, cars, homes, and devices.
INFRARED PLASTIC SOLAR CELL.pptx
This document summarizes a seminar presentation about infrared plastic solar cells. It discusses how these cells use quantum dots and nanorods to harness infrared radiation from the sun for electricity generation. This allows plastic solar cells to work even on cloudy days. While currently more expensive than traditional solar cells, infrared plastic cells could become more efficient and widespread if costs decrease. The presentation compares plastic cells to traditional photovoltaic panels and outlines applications, advantages, and the single disadvantage of cost.
Physical chem
1. The document discusses solar cells, which convert sunlight directly into electricity through the photovoltaic effect. Solar cells are made from semiconducting materials like silicon and arranged in solar panels.
2. It describes how photons from sunlight are absorbed, exciting electrons that travel through the material to produce electricity. An array of solar cells converts sunlight to direct current (DC) power.
3. Research is advancing new solar cell materials and designs like perovskite solar cells, which have achieved over 20% efficiency compared to less than 5% in 2009.
Design and Simulation of Dye Sensitized Solar Cell as a Cost-Effective Alt...
The continuous research in the area of renewable energy technology to substitute the unsustainable nature of fossil
fuel in terms of it future availability and negative environmental impact created by fossil fuel has ensure the explore
of solar energy as a good alternative. Dye sensitized solar cells (DSSCs) serve to be a good alternative means of
producing photovoltaic solar cell. This work reports the working principle and construction process of dye-sensitized
solar cell. A synthesized dye (Ruthenium oxide) and an iodide electrolyte were used for better performance based on
already researched work. Also, this work reports the evaluation process with results recorded by the produced solar
cell within 6:00am (GMT) and 6:00pm (GMT) for selected days. The results from the evaluation process show a
better performance of a dye-sensitized solar cell in low and normal sunny day. The solar cell has a good performance
at 12:00noon with a 0.5V output.
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.
Similar to Organic / Polymer solar cells (20)
Advance Solar Cells and Printed Solar Cell A Review
Advance Solar Cells and Printed Solar Cell A Review
Design and Simulation of Dye Sensitized Solar Cell as a Cost-Effective Alt...
Design and Simulation of Dye Sensitized Solar Cell as a Cost-Effective Alt...
Recently uploaded
Environment Conservation Rules 2023 (ECR)-2023.pptx
Bangladesh Environment Conservation Rules 2023 (ECR-2023).
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...Open Access Research Paper
Water polluted by dyestuffs compounds is a global threat to health and the environment; accordingly, we prepared a green novel sorbent chemical and Physical system from an algae, chitosan and chitosan nanoparticle and impregnated with algae with chitosan nanocomposite for the sorption of Malachite green dye from water. The algae with chitosan nanocomposite by a simple method and used as a recyclable and effective adsorbent for the removal of malachite green dye from aqueous solutions. Algae, chitosan, chitosan nanoparticle and algae with chitosan nanocomposite were characterized using different physicochemical methods. The functional groups and chemical compounds found in algae, chitosan, chitosan algae, chitosan nanoparticle, and chitosan nanoparticle with algae were identified using FTIR, SEM, and TGADTA/DTG techniques. The optimal adsorption conditions, different dosages, pH and Temperature the amount of algae with chitosan nanocomposite were determined. At optimized conditions and the batch equilibrium studies more than 99% of the dye was removed. The adsorption process data matched well kinetics showed that the reaction order for dye varied with pseudo-first order and pseudo-second order. Furthermore, the maximum adsorption capacity of the algae with chitosan nanocomposite toward malachite green dye reached as high as 15.5mg/g, respectively. Finally, multiple times reusing of algae with chitosan nanocomposite and removing dye from a real wastewater has made it a promising and attractive option for further practical applications.
Biomimicry in agriculture: Nature-Inspired Solutions for a Greener Future
Presentation made for the Webinar Series on Biomimicry for sustainability on 1st June 2024 organized by Green Building Council Sri Lanka
原版制作(Manitoba毕业证书)曼尼托巴大学毕业证学位证一模一样
学校原件一模一样【微信：741003700 】《(Manitoba毕业证书)曼尼托巴大学毕业证学位证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
原版制作(Newcastle毕业证书)纽卡斯尔大学毕业证在读证明一模一样
学校原件一模一样【微信：741003700 】《(Newcastle毕业证书)纽卡斯尔大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Wildlife-AnIntroduction.pdf so that you know more about our environment
All about wildlife, if you are fond of animals and wildlife then do follow us for more content like this
在线办理(lboro毕业证书)拉夫堡大学毕业证学历证书一模一样
学校原件一模一样【微信：741003700 】《(lboro毕业证书)拉夫堡大学毕业证学历证书》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Lessons from operationalizing integrated landscape approaches
Presented by James Reed at "9th Landscape Sustainability Science Forum" on 11 May 2024
Improving the viability of probiotics by encapsulation methods for developmen...
Improving the viability of probiotics by encapsulation methods for developmen...Open Access Research Paper
The popularity of functional foods among scientists and common people has been increasing day by day. Awareness and modernization make the consumer think better regarding food and nutrition. Now a day’s individual knows very well about the relation between food consumption and disease prevalence. Humans have a diversity of microbes in the gut that together form the gut microflora. Probiotics are the health-promoting live microbial cells improve host health through gut and brain connection and fighting against harmful bacteria. Bifidobacterium and Lactobacillus are the two bacterial genera which are considered to be probiotic. These good bacteria are facing challenges of viability. There are so many factors such as sensitivity to heat, pH, acidity, osmotic effect, mechanical shear, chemical components, freezing and storage time as well which affects the viability of probiotics in the dairy food matrix as well as in the gut. Multiple efforts have been done in the past and ongoing in present for these beneficial microbial population stability until their destination in the gut. One of a useful technique known as microencapsulation makes the probiotic effective in the diversified conditions and maintain these microbe’s community to the optimum level for achieving targeted benefits. Dairy products are found to be an ideal vehicle for probiotic incorporation. It has been seen that the encapsulated microbial cells show higher viability than the free cells in different processing and storage conditions as well as against bile salts in the gut. They make the food functional when incorporated, without affecting the product sensory characteristics.
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
Results of geophysics and pneumatic injection pilot tests during 2003 – 2007 yielded significant positive results for injection delivery design and contaminant mass treatment, resulting in permanent shut-down of an existing groundwater Pump & Treat system.
Accessible source areas were subsequently removed (2011) by soil excavation and treated with the placement of Emulsified Vegetable Oil EVO and zero-valent iron ZVI to accelerate treatment of impacted groundwater in overburden and weathered fractured bedrock. Post pilot test and post remediation groundwater monitoring has included analyses of CVOCs, organic fatty acids, dissolved gases and QuantArray® -Chlor to quantify key microorganisms (e.g., Dehalococcoides, Dehalobacter, etc.) and functional genes (e.g., vinyl chloride reductase, methane monooxygenase, etc.) to assess potential for reductive dechlorination and aerobic cometabolism of CVOCs.
In 2022, the first commercial application of MetaArray™ was performed at the site. MetaArray™ utilizes statistical analysis, such as principal component analysis and multivariate analysis to provide evidence that reductive dechlorination is active or even that it is slowing. This creates actionable data allowing users to save money by making important site management decisions earlier.
The results of the MetaArray™ analysis’ support vector machine (SVM) identified groundwater monitoring wells with a 80% confidence that were characterized as either Limited for Reductive Decholorination or had a High Reductive Reduction Dechlorination potential. The results of MetaArray™ will be used to further optimize the site’s post remediation monitoring program for monitored natural attenuation.
RoHS stands for Restriction of Hazardous Substances, which is also known as t...
RoHS stands for Restriction of Hazardous Substances, which is also known as the Directive 2002/95/EC. It includes the restrictions for the use of certain hazardous substances in electrical and electronic equipment. RoHS is a WEEE (Waste of Electrical and Electronic Equipment).
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...
The incorporation of a 3DCSM and completion of HRSC provided a tool for enhanced, data-driven, decisions to support a change in remediation closure strategies. Currently, an approved pilot study has been obtained to shut-down the remediation systems (ISCO, P&T) and conduct a hydraulic study under non-pumping conditions. A separate micro-biological bench scale treatability study was competed that yielded positive results for an emerging innovative technology. As a result, a field pilot study has commenced with results expected in nine-twelve months. With the results of the hydraulic study, field pilot studies and an updated risk assessment leading site monitoring optimization cost lifecycle savings upwards of $15MM towards an alternatively evolved best available technology remediation closure strategy.
快速办理(Calabria毕业证书)卡拉布里亚大学毕业证在读证明一模一样
原件一模一样【微信：bwp0011】《(Calabria毕业证书)卡拉布里亚大学毕业证》【微信：bwp0011】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问微bwp0011
【主营项目】
一.毕业证【微bwp0011】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微bwp0011】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Recently uploaded (16)
Environment Conservation Rules 2023 (ECR)-2023.pptx
Environment Conservation Rules 2023 (ECR)-2023.pptx
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Biomimicry in agriculture: Nature-Inspired Solutions for a Greener Future
Biomimicry in agriculture: Nature-Inspired Solutions for a Greener Future
Wildlife-AnIntroduction.pdf so that you know more about our environment
Wildlife-AnIntroduction.pdf so that you know more about our environment
Lessons from operationalizing integrated landscape approaches
Lessons from operationalizing integrated landscape approaches
Improving the viability of probiotics by encapsulation methods for developmen...
Improving the viability of probiotics by encapsulation methods for developmen...
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
BASIC CONCEPT OF ENVIRONMENT AND DIFFERENT CONSTITUTENET OF ENVIRONMENT
BASIC CONCEPT OF ENVIRONMENT AND DIFFERENT CONSTITUTENET OF ENVIRONMENT
RoHS stands for Restriction of Hazardous Substances, which is also known as t...
RoHS stands for Restriction of Hazardous Substances, which is also known as t...
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...
world-environment-day-2024-240601103559-14f4c0b4.pptx
world-environment-day-2024-240601103559-14f4c0b4.pptx
Organic / Polymer solar cells
- 2. HISTORY ● In 1839 EDMOND BECQUEREL built the first photovoltaic cell ● In 1883 CHARLES FRiTTS built the solid state photovoltaic on applying a layer of semiconductor selenium. 25 April 1954 -”First practical photovoltaic cell was evidenced at Bell laboratories.”
- 3. Photovoltaic Solar Cells Named after the semiconducting materials they are made of - silicon ,CdTe and CIGS
- 4. solar- cells made from crystalline silicon are in form of wafers *160 - 240 micrometers thick
- 5. TOPAZ SOLAR FARM Topaz solar farm is one of the largest photovoltaic solar stations on the world. 550 Megawatt power stations present in California. Topaz solar farm from space. The project covers 4,700 acres
- 6. Solar panels capture light and convert into electricity. The metal strips conducts the flow of electrons Electrons flow back out of the house and return to the cell the the metal backing Antireflective coating- Photons needed to generate solar power- absorbed by silicon wafers and not reflected away.
- 7. -THEY ARE FLEXIBLE - Various types of organic solar cell - Made from POLYMERS -Single layered structure -Multilayered structured cell Organicsolarcells
- 8. ADVANTAGES Easily Manufactured Light weight Can be used with Thin film substrates ● 1,ooo times thinner than silicon cells
- 10. 1. Flexibility as an Advantage,is shared with thin- film photovoltaics,and is a feature allowing solar-cells to be encoporated into applications where flexibility is an advantage Materials used in plastic solar cells can be synthesized using organic chemistry methods offering opportunities to tune-in the properties of photoactive materials 2 Organic polymers production do not require rare materials and hence, reducing risk regarding cost and supply. 3.
- 11. Researchers were able to increase the efficiency by using a nanostructured “sandwich” of a metal that collects and traps light. The sandwich - called a subwavelength plasmonic cavity -has a property to collect light . PLASMONIC particles are metal nanoparticles -silver,gold and platinum highly capable of gripping sun-rays.
- 13. Electron Microscopic image of Gold mesh Each hole is 175 nanometre in size which is smaller than the wavelength of light easing the chances of trapping light.
- 14. PEDOT:PSS is a transparent, conductive polymer. Highly ductile PCBM : An electron acceptor material INDIUM TIN OXIDE (ITO) :Most widely used because of its electrical conductivity and high optical transparency. Can operate upto a temperature of 47320 degree Fahrenheit