Defect-Level Trap optimization in Cu2ZnSn(S,Se)4 Photovoltaic Materials via Sb3+-Doping for over 13% Efficient Solar Cell

In this study, Sb2S3 was introduced into the two-step selenization process to promote bottom grain growth and reduce the surface roughness of the Cu2ZnSn(S,Se)4 light-absorber layer. The inducing Sb doping...