Modeling of Lead Halide Perovskites for Photovoltaic Applications

By R. Jishi, O. Ta, A. Sharif. 2014

175 citations recorded by the source corpus.

We report first-principles calculations, using the full potential linear augmented plane wave method, on six lead halide semiconductors, namely, CH3NH3PbI3, CH3NH3PbBr3, CsPbX3 (X=Cl, Br, I), and RbPbI3. Exchange is modeled using the modified Becke-Johnson potential. With an appropriate choice of the parameter that defines this potential, an excellent agreement is obtained between calculated and experimental band gaps of the six compounds. We comment on the possibility that the cubic phase of CsPbI3, under hydrostatic pressure, could be a topological insulator.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/98539877f941e30daba418e25dfba66980b545d9