Optical, Electrical and Photo-Electrical Characteristics of Bio-Polymeric Complex of Natural Chromatophore & Development of Non-Silicon Solar Cells

2010 ◽  
Vol 8 ◽  
pp. 23-34 ◽  
Author(s):  
S.S. Pradhan ◽  
A. Sarkar
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Silicon Solar Cells ◽  
Electrical Characteristics ◽  
Polymeric Complex ◽  
Electrical Behaviour ◽  
Plant Leaves ◽  
Application Potential ◽  
Nano Cluster ◽  
Silicon Based

Gum Arabica, an Electro-Active Bio-Polymer (EABP) is employed to develop photosensitive bio-complexes with chromophore matter collected from natural flowers and chlorophyll from plant leaves. The photosensitivity and enhancement of electro-activity of the developed complex and nano-cluster doped specimens of the same are examined experimentally. The electrical, optical, and photoelectrical characteristics are also investigated experimentally. It has been observed that the electrical property is mostly mixed conducting and can be tailored. The photo electrical behaviour is found to be fascinating. The developed complex is capable of absorbing light by losing or gaining electrons. The application potential of the developed complex toward light harvesting processes is exploited to develop a non-silicon based solar cell. The electrical characteristics of the developed solar cells are studied. The results obtained are good when compared to those of existing solar cells.

scholarly journals MODELING METAL NANOPARTICLES INFLUENCE TO PROPERTIES OF SILICON SOLAR CELLS

2020 ◽  
Vol 8 (11) ◽  
pp. 336-345
Author(s):  
Jasurbek Gulomov ◽  
◽  
Rayimjon Aliev ◽  
Murad Nasirov ◽  
Jakhongir Ziyoitdinov ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Metal Nanoparticles ◽  
Software Package ◽  
Silicon Solar Cells ◽  
Gold And Silver Nanoparticles ◽  
New Methods ◽  
Modeling Software ◽  
Optical Layer ◽  
Silicon Based

Nanotechnologies are entering every field. Nanoparticles have been widely used in medicine and technology. We decided to study the behavior of nanoparticles under the influence of light and its effects on solar cells, based on a number of properties. How gold and silver nanoparticles are introduced into the optical layer of the solar cell has been studied enough to affect the properties of the solar cell. However, the effect of silicon-based solar cell metal nanoparticles in the n domain on the solar cell has not been sufficiently studied. In addition, in this study, the properties of solar cells, which included nanoparticles of various shapes, were modeled. Since the end of the last century, new methods of modeling have been introduced into scientific research. A lot of modeling software has been developed. They are based on a numerical method. Synopsys program of Sentaurus TCAD software package was used in the modeling to ensure the accuracy and reliability of the research. Using Sentaurus TCAD, a model of a silicon-based solar cell with simple and various shapes of platinum nanoparticles embedded in the n field was developed. The focus is on determining the effect of the shape of a nanoparticle introduced on solar cells on its properties. The effect of nanoparticles on the optical and I-V characteristics of a solar cell is also analyzed in depth.

scholarly journals Micro crack imaging of silicon solar cells with SEM (Scanning Electron Microscopy)

2021 ◽  
Vol 878 (1) ◽  
pp. 012062
Author(s):  
W Gunawan ◽  
S Stepanus ◽  
L Lisapaly ◽  
F Mustari ◽  
H S Sutomo
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Solar Cells ◽  
Solar Cell ◽  
Advanced Technology ◽  
Silicon Solar Cells ◽  
Internal Crack ◽  
Silicon Based ◽  
Short Time ◽  
Scanning Electron

Abstract Both monocrystalline and polycrystalline silicon based solar cells are proven to be widely used in the photovoltaic industry compared to other solar cell material such as titanium oxide or germanium due to abundant materials and economical production processes, however the problem occurs due to internal (crack) defects in the silicon wafers. The cracks of silicon solar cells occur due to the manufacturing process or when applying them to the field in a relatively short time. Research was also carried out to determine the cause of the cracks and how much damage had occurred that affected the performance of silicon solar cells. By using SEM (Scanning Electron Microscopy) we will prove that, is it clear that the damage caused by production failure of external influences causes defects (micro cracks), holes, burns and so on. The advanced technology owned by SEM is expected to be reliable to find the location of the damage quickly and precisely because the result displayed are very accurate so that it is expected to be an evaluation for the solar cell production process in the future.

A recent overview on the porphyrin-based π-extended small molecules as donors and acceptors for high-performance organic solar cells

2021 ◽  
Author(s):  
Venkatesh Piradi ◽  
Feng Yan ◽  
Xunjin Zhu ◽  
Wai-Yeung Raymond Wong
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
High Performance ◽  
Cost Effective ◽  
Effective Alternative ◽  
The Past ◽  
Cost Effective Alternative ◽  
Silicon Based

Organic solar cells (OSCs) have been considered as a promising cost-effective alternative to silicon-based solar cell counterparts due to their lightweight, mechanical flexibility, and easy fabrication features. Over the past...

scholarly journals Numerical Design of Ultrathin Hydrogenated Amorphous Silicon-Based Solar Cell

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
F. X. Abomo Abega ◽  
A. Teyou Ngoupo ◽  
J. M. B. Ndjaka
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Amorphous Silicon ◽  
Buffer Layer ◽  
Defect Density ◽  
Hydrogenated Amorphous Silicon ◽  
Theoretical Work ◽  
Silicon Based ◽  
The Impact ◽  
Hydrogenated Amorphous

Numerical modelling is used to confirm experimental and theoretical work. The aim of this work is to present how to simulate ultrathin hydrogenated amorphous silicon- (a-Si:H-) based solar cells with a ITO BRL in their architectures. The results obtained in this study come from SCAPS-1D software. In the first step, the comparison between the J-V characteristics of simulation and experiment of the ultrathin a-Si:H-based solar cell is in agreement. Secondly, to explore the impact of certain properties of the solar cell, investigations focus on the study of the influence of the intrinsic layer and the buffer layer/absorber interface on the electrical parameters ( J SC , V OC , FF, and η ). The increase of the intrinsic layer thickness improves performance, while the bulk defect density of the intrinsic layer and the surface defect density of the buffer layer/ i -(a-Si:H) interface, respectively, in the ranges [109 cm-3, 1015 cm-3] and [1010 cm-2, 5 × 10 13  cm-2], do not affect the performance of the ultrathin a-Si:H-based solar cell. Analysis also shows that with approximately 1 μm thickness of the intrinsic layer, the optimum conversion efficiency is 12.71% ( J SC = 18.95   mA · c m − 2 , V OC = 0.973   V , and FF = 68.95 % ). This work presents a contribution to improving the performance of a-Si-based solar cells.

scholarly journals Simulation mechanical stress influence to silicon solar cells by Comsol Multiphysics

2021 ◽  
Vol 10 (2) ◽  
pp. 469-472
Keyword(s):  
Mechanical Properties ◽  
Solar Cells ◽  
Solar Cell ◽  
Mechanical Stress ◽  
Comsol Multiphysics ◽  
Silicon Solar Cells ◽  
Stress Influence

We know the mechanical properties of silicon. However, little is known about the mechanical properties of silicon solar cells. Modeling is widely used in the study of solar cells. This article discusses in detail the effect of mechanical stress on solar cells. To do this, a model of the solar cell was created and simulated at Comsol Multiphysics. The results were presented visually and graphically. The results were tested for relevance and accuracy

Nanotechnology for Photovoltaic Energy

2014 ◽  
pp. 319-346
Author(s):  
Salahuddin Qazi ◽  
Farhan A. Qazi
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Low Cost ◽  
Photovoltaic Cells ◽  
Dye Sensitized Solar Cells ◽  
Future Research ◽  
Full Potential ◽  
Solar Panels ◽  
The Cost ◽  
Silicon Based

Solar radiation is plentiful and a clean source of power. However, despite the first practical use of silicon based solar cell more than 50 years ago, it has not been exploited to its full potential due to the high cost of electrical conversion on a per Watt basis. Many new kinds of photovoltaic cells such as multi-junction solar cells dye –sensitized solar cells and organic solar cell incorporating element of nanotechnology have been proposed to increase the efficiency and reduce the cost. Nanotechnology, in the form of quantum dots, nanorods, nanotubes, and grapheme, has been shown to enhance absorption of sunlight, makes low cost flexible solar panels and increases the efficiency of photovoltaic cells. The chapter reviews the state of current photovoltaic cells and challenges it presents. It also discusses the use of nanotechnology in the application of photovoltaic cells and future research directions to improve the efficiency of solar cells and reduce the cost.

Nanotechnology for Photovoltaic Energy

2013 ◽  
pp. 163-191
Author(s):  
Salahuddin Qazi ◽  
Farhan A. Qazi
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Low Cost ◽  
Photovoltaic Cells ◽  
Dye Sensitized Solar Cells ◽  
Future Research ◽  
Full Potential ◽  
Solar Panels ◽  
The Cost ◽  
Silicon Based

Solar radiation is plentiful and a clean source of power. However, despite the first practical use of silicon based solar cell more than 50 years ago, it has not been exploited to its full potential due to the high cost of electrical conversion on a per Watt basis. Many new kinds of photovoltaic cells such as multi-junction solar cells dye –sensitized solar cells and organic solar cell incorporating element of nanotechnology have been proposed to increase the efficiency and reduce the cost. Nanotechnology, in the form of quantum dots, nanorods, nanotubes, and grapheme, has been shown to enhance absorption of sunlight, makes low cost flexible solar panels and increases the efficiency of photovoltaic cells. The chapter reviews the state of current photovoltaic cells and challenges it presents. It also discusses the use of nanotechnology in the application of photovoltaic cells and future research directions to improve the efficiency of solar cells and reduce the cost.

scholarly journals The prospective application of a graphene/MoS2 heterostructure in Si-HIT solar cells for higher efficiency

2020 ◽  
Vol 2 (8) ◽  
pp. 3231-3243
Author(s):  
Chandra Kamal Borah ◽  
Pawan K. Tyagi ◽  
Sanjeev Kumar
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Output Efficiency ◽  
Prospective Application ◽  
Silicon Based

Graphene, MoS2 and silicon-based HIT solar cell with 25.61% output efficiency.

scholarly journals Performance of Silicon Solar Cells under the Climatic Conditions of Bangladesh, Part III. Performance of PV Cells under Defuse Light and Applicability for Home Lighting

1970 ◽  
Vol 46 (1) ◽  
pp. 117-122 ◽  
Author(s):  
M Eusuf ◽  
M Khanam ◽  
S Khatun
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solid Surface ◽  
Tilt Angle ◽  
Crystalline Silicon ◽  
Climatic Conditions ◽  
Solar Panel ◽  
Silicon Solar Cells ◽  
Crystalline Silicon Solar Cell ◽  
Solar Home System

In part II of this series, it was reported that the solar home system (SHS) supplied by REB in some islands of the Meghna river in the district of Narsingdi could not meet the demand of the recipients in the rainy season when the sky remained overcast with cloud. The tilt angle for all installations was 45° facing south. In this study, effects of direct and diffuse sunlight with variation of tilt angles from 0° to 45° were studied using a mono crystalline silicon cell. Pyranometer and the solar panel were kept under identical conditions. Energy absorbed by the solar panel in diffuse sunlight was found 0.55% of that received by the Pyranometer under similar conditions showing that mono crystalline silicon solar cell of the type under study was not suitable for use in SHS. Moreover, the gap between the panel and the solid surface below it has significant effects on the efficiency of the solar cell. Further similar study using different kinds of cells- mono crystalline, poly crystalline and amorphous is needed for proper designs of SHS. Optimization of the gap between the panel and the solid surface below it is important for roof-mounted and ground-mounted panels. Key words: Silicon solar cells; Tilt angle; Diffuse light; Home lighting; Monocrystaline. DOI: http://dx.doi.org/10.3329/bjsir.v46i1.8114 Bangladesh J. Sci. Ind. Res. 46(1), 117-122, 2011   

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