Effect of Multijunction Approach on Electrical Measurements of Silicon and Germanium Alloy Based Thin-Film Solar Cell Using AMPS-1D

Multijunction solar cells designed from silicon (Si)-germanium (Ge) alloy based semiconductor materials exhibit high theoretical efficiencies (19.6%) compared to the single junction one. The modeling calculations for all solar cells are done by AMPS 1D simulator. The structure of multi-junction i-la...

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Main Authors: Somenath Chatterjee, Sumeet Singh, Himangshu Pal
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2014/653206
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author Somenath Chatterjee
Sumeet Singh
Himangshu Pal
author_facet Somenath Chatterjee
Sumeet Singh
Himangshu Pal
author_sort Somenath Chatterjee
collection DOAJ
description Multijunction solar cells designed from silicon (Si)-germanium (Ge) alloy based semiconductor materials exhibit high theoretical efficiencies (19.6%) compared to the single junction one. The modeling calculations for all solar cells are done by AMPS 1D simulator. The structure of multi-junction i-layer is designed using heterolayers, starting from pure crystalline Si and increase of Ge mole fraction by 25% until pure Ge layer is reached. The top layer has the largest band gap, while the bottom layer has the smallest bandgap. This design allows less energetic photons to pass through the upper layer(s) and be absorbed by the layer below, which increases the overall efficiency of the solar cell. Material parameters required to model the absorber layers are calculated and incorporated in the AMPS 1D simulator for optimizing of solar cell parameter values. Simulation results show that considerable efficiency enhancement can be obtained from the addition of the multi-junction layer.
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publishDate 2014-01-01
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spelling doaj-art-7dc7c5e3d90f47c5b63f68b8e43aad5e2025-02-03T01:23:32ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/653206653206Effect of Multijunction Approach on Electrical Measurements of Silicon and Germanium Alloy Based Thin-Film Solar Cell Using AMPS-1DSomenath Chatterjee0Sumeet Singh1Himangshu Pal2Center for Materials Science & Nanotechnology, Sikkim Manipal Institute of Technology, Majitar, Sikkim 737136, IndiaCenter for Materials Science & Nanotechnology, Sikkim Manipal Institute of Technology, Majitar, Sikkim 737136, IndiaApplied Electronics and Instrumentation Engineering Department, Sikkim Manipal Institute of Technology, Majitar, Sikkim 737136, IndiaMultijunction solar cells designed from silicon (Si)-germanium (Ge) alloy based semiconductor materials exhibit high theoretical efficiencies (19.6%) compared to the single junction one. The modeling calculations for all solar cells are done by AMPS 1D simulator. The structure of multi-junction i-layer is designed using heterolayers, starting from pure crystalline Si and increase of Ge mole fraction by 25% until pure Ge layer is reached. The top layer has the largest band gap, while the bottom layer has the smallest bandgap. This design allows less energetic photons to pass through the upper layer(s) and be absorbed by the layer below, which increases the overall efficiency of the solar cell. Material parameters required to model the absorber layers are calculated and incorporated in the AMPS 1D simulator for optimizing of solar cell parameter values. Simulation results show that considerable efficiency enhancement can be obtained from the addition of the multi-junction layer.http://dx.doi.org/10.1155/2014/653206
spellingShingle Somenath Chatterjee
Sumeet Singh
Himangshu Pal
Effect of Multijunction Approach on Electrical Measurements of Silicon and Germanium Alloy Based Thin-Film Solar Cell Using AMPS-1D
International Journal of Photoenergy
title Effect of Multijunction Approach on Electrical Measurements of Silicon and Germanium Alloy Based Thin-Film Solar Cell Using AMPS-1D
title_full Effect of Multijunction Approach on Electrical Measurements of Silicon and Germanium Alloy Based Thin-Film Solar Cell Using AMPS-1D
title_fullStr Effect of Multijunction Approach on Electrical Measurements of Silicon and Germanium Alloy Based Thin-Film Solar Cell Using AMPS-1D
title_full_unstemmed Effect of Multijunction Approach on Electrical Measurements of Silicon and Germanium Alloy Based Thin-Film Solar Cell Using AMPS-1D
title_short Effect of Multijunction Approach on Electrical Measurements of Silicon and Germanium Alloy Based Thin-Film Solar Cell Using AMPS-1D
title_sort effect of multijunction approach on electrical measurements of silicon and germanium alloy based thin film solar cell using amps 1d
url http://dx.doi.org/10.1155/2014/653206
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