Abstract
In this paper, numerical simulation of bilayer CIGS ( ) solar cell is presented based on the codes SCAPS-1D. Specifically, the effects of Ga composition, thickness, and doping concentration on bilayer CIGS performance are investigated. In addition, this paper also discusses the interactions between some of the correlated parameters. According to the simulations, the optimized structure with 0.4 μm and 2.5 μm absorber layers achieved an efficiency of 36.16%. These results pave a path for promoting the performance of CIGS.
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