Core/shell (pseudo type-II) CsPbBr3/ZnS nanocrystals are prepared, showing ∼15 times enhancement in average photoluminescence lifetime compared to CsPbBr3 nanocrystals. The nanocrystal films (without external encapsulation) ...

Lead halide perovskites are seriously considered for next generation photovoltaic technology. They have a unique combination of easy synthesis, high efficiency, and cost-effective techniques. Still, the major concern is ...