TITLE:
Influence of Defect Density, Band Gap Discontinuity and Electron Mobility on the Performance of Perovskite Solar Cells
AUTHORS:
Issiaka Sankara, Soumaïla Ouédraogo, Daouda Oubda, Boureima Traoré, Marcel Bawindsom Kébré, Adama Zongo, François Zougmoré
KEYWORDS:
Defect Density, Electron Mobility, Band Gap, Perovskite, SCAPS-1D Software
JOURNAL NAME:
Advances in Materials Physics and Chemistry,
Vol.13 No.8,
August
31,
2023
ABSTRACT: In this manuscript, we used the SCAPS-1D software to perform numerical
simulations on a perovskite solar cell. These simulations were used to study
the influence of certain parameters on the electrical behavior of the cell. We
have shown in this study that electron mobility is strongly influenced by the
thickness of the absorber, since electron velocity is reduced by thickness. The
influence of the defect density shows that above 1016 cm-3 all the electrical parameters are affected by the defects. The band
discontinuity at the interface generally plays a crucial role in the charge
transport phenomenon. The importance of this study is to enable the development
of good quality perovskite solar cells, while taking into account the
parameters that limit solar cell performance.