Optimizing the Efficiency of Solar Cells based on GaAs

Nowadays thin-film solar cells are increasingly used mainly because of their low cost. In recent decades the performance of these cells were significantly improved. In this work, we simulated a solar cell type GaAs using software (PC1D) to analyze certain parameters, in particular the properties of the window layer, base, emitter and BSF layer (thickness, doping ...), these parameters play a crucial role in the performance of the cell, and to optimize them, we studied their influence on the photovoltaic solar cell sizes. In order to highlight the importance of depositing a layer window type Ga 1-x Al x on GaAs solar cells, a comparison between two cells, one with no window layer, the other with a layer window, was made. The energy efficiency is increased from 24.9 registered in a cell% to 26.7% for GaAs cell Ga1-x Al x As / GaAs.