Figure 1

Lattice structure schematic of organometal halide perovskites materials CH3NH3XI3(X = Pb, B), (a) orthorhombic phase, (b) tetragonal phase.
Lattice structure schematic of organometal halide perovskites materials CH3NH3XI3(X = Pb, B), (a) orthorhombic phase, (b) tetragonal phase.