Introduction of gallium( iii ) acetylacetonate (GaAA 3 ) induced Cs x FA 1−x PbI 3 –[GaAA 3 ] 4 (0 < x < 1) core–shell hybrid-materials based perovskite solar cell with remarkably high stability.
The hybrid Sn–Pb perovskite solar cells with C60 additive were demonstrated to own superior stability and efficiency when exposed to the ambient environment without encapsulation.