Enhancing Cu2ZnSnS4 Solar Cell Efficiency through Antimony Substitution for Tin: A SCAPS-1D Simulation Study
Keywords:
Photovoltaic cell, SCAPS-1D,CZTS, CdS, ZnO, Thin film.Abstract
SCAPS-1D, a one-dimensional solar cell simulator, provides a valuable tool for predicting device performance based on layer-by-layer material properties. Copper Zinc Tin Sulfide (CZTS) has emerged as a promising absorber material due to its exceptional light absorption coefficient and the abundance and non-toxic nature of its constituent elements. This study leverages SCAPS-1D to investigate the working mechanism of CZTS-based solar cells. We simulate a Mo/CZTS/CdS/ZnO device structure under AM 1.5 spectrum illumination and 300 K temperature, analyzing the impact of individual layer thickness on photovoltaic performance. Further, a comparative analysis explores the influence of various n-type materials.. In addition, the introduction of antimony (Sb) doping into CZTS leads to a significant change in efficiency of the cell. The efficiency of Sbdoping CZTS attained 21.90%, while there was a great improvement by 3% via reduced recombination losses and enhanced photocurrent. This work gives an insight into the possibility of Sb doping for the improvement in the performance of thin-film solar cells.
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