Hexagonal boron nitride as a cationic diffusion barrier to form a graded band gap perovskite heterostructure
2016
We demonstrate a new technique to produce graded bandgap organohalide perovskite heterostructures using hexagonal boron nitride (h-BN) as a cationic separator. With this technique, we successfully deposit CH3NH3PbI3−xBrx on CH3NH3SnI3 without cation mixing.
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