Nonlinear refraction in CH${}_3$NH${}_3$PbBr${}_3$ single crystals

Christian Kriso, Markus Stein, Tobias Haeger +5

Hybrid lead halide perovskites, such as CH${}_3$NH${}_3$PbX${}_3$ (X=I, Br), are direct gap semiconductors that offer many superior optoelectronic properties combined with extremely simp…