Composition-dependent photoluminescence intensity and prolonged recombination lifetime of perovskite CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3−x</sub>Cl<sub>x</sub>films
Mixed halide perovskites CH3NH3PbBr3-xClx (x = 0.6-1.2) with different compositions of halogens exhibit drastically changed optical properties. In particular, the thin films pre...