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2021 | OriginalPaper | Chapter

Study of Graded Ultrathin CIGS/Si Structure for Solar Cell Applications

Authors : M. Boubakeur, A. Aissat, J. P. Vilcot

Published in: Proceedings of the 2nd International Conference on Electronic Engineering and Renewable Energy Systems

Publisher: Springer Singapore

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Abstract

This paper aims to improve the performance of graded ultrathin CIGS-based solar cells using the one-dimensional simulation program (SCAPS-1D). In this context, we have assessed the effect of the graded bandgap and the thickness of the absorber layer (CIGS) on solar cell performance. We have also examined the impact of different graded bandgap profiles by varying the gallium concentration. Notably, the increase of the gallium concentration (xGa) and the CIGS thickness (dCIGS) have degraded the conversion efficiency η. The optimization of these parameters gives a considerable solar yield when dCIGS = 1 μm and xGa in the range 0.1–0.3. For the graded cell, we have mentioned that the double-graded profile improves significantly the conversion efficiency up to 22.21% compared to the uniform profile with η = 21.43%.

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Metadata
Title
Study of Graded Ultrathin CIGS/Si Structure for Solar Cell Applications
Authors
M. Boubakeur
A. Aissat
J. P. Vilcot
Copyright Year
2021
Publisher
Springer Singapore
Book
Proceedings of the 2nd International Conference on Electronic Engineering and Renewable Energy Systems

Print ISBN: 978-981-15-6258-7

Electronic ISBN: 978-981-15-6259-4

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-981-15-6259-4_33