Improvement of the output performance of CZTS thin film solar cell

Abstract

In this work, 1D simulation has been performed to improve the output performance of CZTS solar cells. Three device parameters: back metal work function, CZTS absorber layer thickness and acceptor doping concentration of the absorber layer have been varied to optimize the overall solar cell performance. It has been found that back metal work function plays the most critical role and Au and Pd gives superior performance when used as back metal contact. Overall the best parameters for achieving high efficiency of a CZTS solar cell is reported.