Parameters optimization of CIGS solar cell using 2D physical modeling

•Simulation of a CIGS solar cell using Sivaco-atlas software.•Optimization of material properties of CIGS solar cell with respect to the cell’s efficiency.•An increase of the conversion efficiency of about 3.24% was observed after optimization. In this study, the CIGS thin film solar cell has been i...

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Bibliographic Details
Published in:Results in physics 2017, Vol.7, p.4020-4024
Main Authors: Dabbabi, Samar, Nasr, Tarek Ben, Kamoun-Turki, Najoua
Format: Article
Language:English
Subjects:
CIGS solar cell
Electrical characteristics
Silvaco-Atlas software
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Summary:•Simulation of a CIGS solar cell using Sivaco-atlas software.•Optimization of material properties of CIGS solar cell with respect to the cell’s efficiency.•An increase of the conversion efficiency of about 3.24% was observed after optimization. In this study, the CIGS thin film solar cell has been investigated using the two-dimensional device simulator Silvaco-Atlas. Thickness and carrier concentration effects of the cell structure were studied to optimize the solar cell performances. Our results revealed high efficiency for a cell structure of 0.15µm ZnO:Al, 0.06µm i-ZnO, 0.04µm CdS and 3µm CIGS. The carrier concentration effects of the different layers were also studied revealing a better performance for CIGS doping concentration of 1018cm−3. The optimized CIGS solar cell characteristics were a current density of short circuit Jsc=38.75mA/cm2, an open-circuit voltage V0C=804.03mV, a fill factor FF=74.48% and an efficiency η=23.20%. This result is in good agreement with experimental efficiencies found in literature.
ISSN:2211-3797
2211-3797
DOI:10.1016/j.rinp.2017.06.057