The Way of the Increasing Two Times the Efficiency of Silicon Solar Cell

The electrophilic borylation of 2,5-diarylpyrazines results in the formation of boron-nitrogen doped dihydroindeno[1,2-<i>b</i>]fluorene which can be synthesized via mildly air-sensitive techniques and the end products handled readily under atmosphereic conditions. Through transmetallation via diarylzinc reagents a series of derivatives were sythesized which show broad absorption profiles that highlight the versatility of this backbone to be used in organic solar cell devices. These compounds can be synthesized in large yields, in alow number of steps and functionalized at many stages along the way providing a large depth of possibilities. Exploratory device paramaters were studied and show PCE of 2%.

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

Materials Chemistry Frontiers ◽

10.1039/d1qm00952d ◽

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...

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Numerical Design of Ultrathin Hydrogenated Amorphous Silicon-Based Solar Cell

International Journal of Photoenergy ◽

10.1155/2021/7506837 ◽

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.

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Numerical Simulation of a Textured and Untextured Photovoltaic Solar Cell: Comparative study

Algerian Journal of Renewable Energy and Sustainable Development ◽

10.46657/ajresd.2021.3.1.11 ◽

2021 ◽

Vol 03 (01) ◽

pp. 104-114

Author(s):

Karim Salim ◽

◽

M.N Amroun ◽

K Sahraoui ◽

W Azzoui ◽

...

Keyword(s):

Numerical Simulation ◽

Solar Cells ◽

Solar Cell ◽

Comparative Study ◽

Silicon Solar Cell ◽

The Other ◽

Surface Parameters ◽

Cell Efficiency ◽

Photovoltaic Solar Cell ◽

A Cell

Increasing the efficiency of solar cells relies on the surface of the solar cell. In this work, we simulated a textured silicon solar cell. This simulation allowed us to predict the values of the surface parameters such as the angle and depth between the pyramids for an optimal photovoltaic conversion where we found the Icc: 1.783 (A) and Vco: 0.551 (V) with a cell efficiency of about 13.56%. On the other hand, we performed another simulation of a non-textured solar cell to compare our values and found Icc: 1.623 (A) and Vco: 0.556 (V) with an efficiency of about 12.76%.

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High Haze and Low Resistive MgO/AZO Bi-layer Transparent Conducting Oxide for Thin Film Solar Cells

MRS Proceedings ◽

10.1557/opl.2011.1063 ◽

2011 ◽

Vol 1327 ◽

Author(s):

Dong Won Kang ◽

Jong Seok Woo ◽

Sung Hwan Choi ◽

Seung Yoon Lee ◽

Heon Min. Lee ◽

...

Keyword(s):

Thin Film ◽

Solar Cells ◽

Solar Cell ◽

Silicon Solar Cell ◽

Transparent Conducting Oxide ◽

Visible Region ◽

Xrd Analysis ◽

Thin Film Solar Cells ◽

Microcrystalline Silicon ◽

Transparent Conducting

ABSTRACTWe have propsed MgO/AZO bi-layer transparent conducting oxide (TCO) for thin film solar cells. From XRD analysis, it was observed that the full width at half maximum of AZO decreased when it was grown on MgO precursor. The Hall mobility of MgO/AZO bi-layer was 17.5cm2/Vs, whereas that of AZO was 20.8cm2/Vs. These indicated that the crystallinity of AZO decreased by employing MgO precursor. However, the haze (=total diffusive transmittance/total transmittance) characteristics of highly crystalline AZO was significantly improved by MgO precursor. The average haze in the visible region increased from 14.3 to 48.2%, and that in the NIR region increased from 6.3 to 18.9%. The reflectance of microcrystalline silicon solar cell was decreased and external quantum efficiency was significantly improved by applying MgO/AZO bi-layer TCO. The efficiency of microcrystalline silicon solar cell with MgO/AZO bi-layer front TCO was 6.66%, whereas the efficiency of one with AZO single TCO was 5.19%.

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Nanotechnology for Photovoltaic Energy

Nanotechnology ◽

10.4018/978-1-4666-5125-8.ch012 ◽

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.

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Nanotechnology for Photovoltaic Energy

Handbook of Research on Solar Energy Systems and Technologies ◽

10.4018/978-1-4666-1996-8.ch006 ◽

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.

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Theoretical Study of Proton Radiation Influence on the Performance of a Polycrystalline Silicon Solar Cell

International Journal of Photoenergy ◽

10.1155/2019/8306492 ◽

2019 ◽

Vol 2019 ◽

pp. 1-7

Author(s):

Tchouadep Guy Serge ◽

Zouma Bernard ◽

Korgo Bruno ◽

Soro Boubacar ◽

Savadogo Mahamadi ◽

...

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Silicon Solar Cell ◽

Short Circuit ◽

Experimental Studies ◽

High Energy ◽

High Energy Particle ◽

Proton Radiation ◽

Electrical Parameters ◽

Carrier Distribution

The aim of this work is to study the behaviour of a silicon solar cell under the irradiation of different fluences of high-energy proton radiation (10 MeV) and under constant multispectral illumination. Many theoretical et experimental studies of the effect of irradiation (proton, gamma, electron, etc.) on solar cells have been carried out. These studies point out the effect of irradiation on the behaviour of the solar cell electrical parameters but do not explain the causes of these effects. In our study, we explain fundamentally the causes of the effects of the irradiation on the solar cells. Taking into account the empirical formula of diffusion length under the effect of high-energy particle irradiation, we established new expressions of continuity equation, photocurrent density, photovoltage, and dynamic junction velocity. Based on these equations, we studied the behaviour of some electronic and electrical parameters under proton radiation. Theoretical results showed that the defects created by the irradiation change the carrier distribution and the carrier dynamic in the bulk of the base and then influence the solar cell electrical parameters (short-circuit current, open-circuit voltage, conversion efficiency). It appears also in this study that, at low fluence, junction dynamic velocity decreases due to the presence of tunnel defects. Obtained results could lead to improve the quality of the junction of a silicon solar cell.

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

Nanoscale Advances ◽

10.1039/d0na00309c ◽

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.

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Novel high-efficiency crystalline-silicon-based compound heterojunction solar cells: HCT (heterojunction with compound thin-layer)

Physical Chemistry Chemical Physics ◽

10.1039/c4cp00668b ◽

2014 ◽

Vol 16 (29) ◽

pp. 15400-15410 ◽

Cited By ~ 16

Author(s):

Yiming Liu ◽

Yun Sun ◽

Wei Liu ◽

Jianghong Yao

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Thin Layer ◽

High Efficiency ◽

Crystalline Silicon ◽

Heterojunction Solar Cell ◽

Heterojunction Solar Cells ◽

Silicon Based

A novel high-efficiency c-Si heterojunction solar cell with using compound hetero-materials is proposed and denominated HCT (heterojunction with a compound thin-layer).

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