This document discusses innovations in solar cell efficiency. It describes how solar cells work by converting light to electricity via the photovoltaic effect. Silicon is currently the most commonly used material, but it has disadvantages like high costs and low efficiency. Perovskites are presented as an alternative as they can be produced cheaply from abundant materials and have achieved over 22% efficiency, comparable to silicon. This high efficiency was attained quickly, rising from 3% in 2009 to 22% in 2016, prompting further research into perovskites solar cells.
Photovoltaics or solar cells technology opportunity and challengesHemant Kumar Singh
Photovoltaics or solar cells technology opportunity and challenges is a quick presentation to give an outlook of PV development and its potential use in different field.
introduction,advantage and disadvantage of solar energy,Generation of solar cell: 1st 2nd 3rd generation solar cell , I-V characteristics, working,application, efficiency data and advantage solar cell.
The most common type of solar cells are Photovoltaic Cells (PV cells)
Converts sunlight directly into electricity
Cells are made of a semiconductor material (eg. silicon)
Light strikes the PV cell, and a certain portion is absorbed
The light energy (in the form of photons) knocks electrons loose, allowing them to flow freely, forming a current
Metal contacts on the top and bottom of PV cell draws off the current to use externally as power
This presentation covers the basics of silicon photovoltaic cells, looking at the photovoltaic effect, the chemical properties of silicon, PN junctions, how photovoltaic cells are constructed, the factors affecting their performance and how they can be tested and evaluated.
Photovoltaics or solar cells technology opportunity and challengesHemant Kumar Singh
Photovoltaics or solar cells technology opportunity and challenges is a quick presentation to give an outlook of PV development and its potential use in different field.
introduction,advantage and disadvantage of solar energy,Generation of solar cell: 1st 2nd 3rd generation solar cell , I-V characteristics, working,application, efficiency data and advantage solar cell.
The most common type of solar cells are Photovoltaic Cells (PV cells)
Converts sunlight directly into electricity
Cells are made of a semiconductor material (eg. silicon)
Light strikes the PV cell, and a certain portion is absorbed
The light energy (in the form of photons) knocks electrons loose, allowing them to flow freely, forming a current
Metal contacts on the top and bottom of PV cell draws off the current to use externally as power
This presentation covers the basics of silicon photovoltaic cells, looking at the photovoltaic effect, the chemical properties of silicon, PN junctions, how photovoltaic cells are constructed, the factors affecting their performance and how they can be tested and evaluated.
Building Integrated Photovoltaic Solar Glazing, Current & Emerging TechnologiesGavin Harper
Presentation at the Low Carbon Research Institute Conference, Cardiff, SWALEC Stadium, 18th November 2014 on Building Integrated Photovoltaics Solar Glazing: Current & Emerging Technologies
Basic introduction to solar PV System Presentation.
The need for renewable energy resources has never been bigger than today and so is a lot of research going to match this high energy demand. Solar PV Array technology is one such technique which can actually make the effective use of solar energy available to us.
This presentation is about the solar PV technologies which are been using now a days like perovskite solar cells etc and there is also a comparison between the different types of solar cells in this presentation.
This presentation covers following points:-
1. Introduction
2. Introduction to Flexible Solar Cell
3. Flexible Photovoltaic Technology
4. Different types of Flexible Solar Cell
5. Manufacturing Process
6. Testing Method
7. Advantages
8. Applications
9. Conclusion
10. Future Scope
UNDERSTANDING WHAT GREEN WASHING IS!.pdfJulietMogola
Many companies today use green washing to lure the public into thinking they are conserving the environment but in real sense they are doing more harm. There have been such several cases from very big companies here in Kenya and also globally. This ranges from various sectors from manufacturing and goes to consumer products. Educating people on greenwashing will enable people to make better choices based on their analysis and not on what they see on marketing sites.
Artificial Reefs by Kuddle Life Foundation - May 2024punit537210
Situated in Pondicherry, India, Kuddle Life Foundation is a charitable, non-profit and non-governmental organization (NGO) dedicated to improving the living standards of coastal communities and simultaneously placing a strong emphasis on the protection of marine ecosystems.
One of the key areas we work in is Artificial Reefs. This presentation captures our journey so far and our learnings. We hope you get as excited about marine conservation and artificial reefs as we are.
Please visit our website: https://kuddlelife.org
Our Instagram channel:
@kuddlelifefoundation
Our Linkedin Page:
https://www.linkedin.com/company/kuddlelifefoundation/
and write to us if you have any questions:
info@kuddlelife.org
Natural farming @ Dr. Siddhartha S. Jena.pptxsidjena70
A brief about organic farming/ Natural farming/ Zero budget natural farming/ Subash Palekar Natural farming which keeps us and environment safe and healthy. Next gen Agricultural practices of chemical free farming.
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
Willie Nelson Net Worth: A Journey Through Music, Movies, and Business Venturesgreendigital
Willie Nelson is a name that resonates within the world of music and entertainment. Known for his unique voice, and masterful guitar skills. and an extraordinary career spanning several decades. Nelson has become a legend in the country music scene. But, his influence extends far beyond the realm of music. with ventures in acting, writing, activism, and business. This comprehensive article delves into Willie Nelson net worth. exploring the various facets of his career that have contributed to his large fortune.
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Introduction
Willie Nelson net worth is a testament to his enduring influence and success in many fields. Born on April 29, 1933, in Abbott, Texas. Nelson's journey from a humble beginning to becoming one of the most iconic figures in American music is nothing short of inspirational. His net worth, which estimated to be around $25 million as of 2024. reflects a career that is as diverse as it is prolific.
Early Life and Musical Beginnings
Humble Origins
Willie Hugh Nelson was born during the Great Depression. a time of significant economic hardship in the United States. Raised by his grandparents. Nelson found solace and inspiration in music from an early age. His grandmother taught him to play the guitar. setting the stage for what would become an illustrious career.
First Steps in Music
Nelson's initial foray into the music industry was fraught with challenges. He moved to Nashville, Tennessee, to pursue his dreams, but success did not come . Working as a songwriter, Nelson penned hits for other artists. which helped him gain a foothold in the competitive music scene. His songwriting skills contributed to his early earnings. laying the foundation for his net worth.
Rise to Stardom
Breakthrough Albums
The 1970s marked a turning point in Willie Nelson's career. His albums "Shotgun Willie" (1973), "Red Headed Stranger" (1975). and "Stardust" (1978) received critical acclaim and commercial success. These albums not only solidified his position in the country music genre. but also introduced his music to a broader audience. The success of these albums played a crucial role in boosting Willie Nelson net worth.
Iconic Songs
Willie Nelson net worth is also attributed to his extensive catalog of hit songs. Tracks like "Blue Eyes Crying in the Rain," "On the Road Again," and "Always on My Mind" have become timeless classics. These songs have not only earned Nelson large royalties but have also ensured his continued relevance in the music industry.
Acting and Film Career
Hollywood Ventures
In addition to his music career, Willie Nelson has also made a mark in Hollywood. His distinctive personality and on-screen presence have landed him roles in several films and television shows. Notable appearances include roles in "The Electric Horseman" (1979), "Honeysuckle Rose" (1980), and "Barbarosa" (1982). These acting gigs have added a significant amount to Willie Nelson net worth.
Television Appearances
Nelson's char
Willie Nelson Net Worth: A Journey Through Music, Movies, and Business Ventures
New innovation for increasing the efficiency of solar cell
1. New innovation in the Solar
system to increase its Efficiency
Presented By:
M-A-Askar
2. Solar Cell
• Also known as Photovoltaic cell is an electrical
device that capture the energy from light and
covert it into electricity by the photovoltaic
effect.
• It is a form of photoelectric cell, defined as a
device whose electrical characteristics, such as
current, voltage, or resistance, vary when
exposed to light.
• The material most commonly used for solar
cells still present is mainly silicon.
3. Advantages of Silicon Cell
• The silicon based solar cell have certain
advantages and also have some
disadvantages. As some the advantages of
them are given below;
• Advantages
• Proven technology
• Highest efficiency (currently)
4. • Disadvantages
• On the other hand there are also exist some
of the disadvantages of solar which are
• Expensive to produce
• Short life cycle
• Toxic substance produced and used in the
manufacturing
5. Alternative
• Dr. Tom Savenije, researcher at TU Delft. explain
'One of the possible alternatives is solar cells
based on perovskites.
• Because perovskites are made from extremely
cheap starting materials and the processing is
relatively simple.
• It 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.
6.
7. Efficiency
• Silicon solar cells have reached a point of
maturation, with efficiencies plateauing
around 25% and problems of high-cost
manufacturing, heavyweight, and rigidity has
remained largely unresolved.
• On the contrary, a relatively new photovoltaic
technology based on perovskites solar cells
has already achieved more than 22%
efficiency.
8. • 'The efficiency of the solar cells has risen
extremely quickly.
• In 2009 the efficiency was 3% and already in 2016
an efficiency of 22% was achieved, comparable to
that of polycrystalline silicon solar cells.
• This has prompted widespread enthusiasm for
research into perovskites.'
• This efficiency is achieved only through the use of
Perovskites instead of silicon.
