Saidi, Mohammed Amine2024-04-292024-04-292023-06-22https://dspace.univ-tlemcen.dz/handle/112/22264This innovative study explores the impact of incorporating a layer of porous silicon on the performance of CZTS and CZTSe-based solar cells. The results show a significant improvement in the energy conversion efficiency (PCE) of both types of solar cells after optimization to values that can reach up to 38%. This study contributes to the advancement of knowledge in the field of solar cells by proposing an innovative approach to improve their performance. The results obtained are promising and could have practical applications in the field of solar energy.frThesis