Fig. 4
From: Tailoring properties of hybrid perovskites by domain-width engineering with charged walls
Structural and electric properties of P[103]&P[−103] domain structures of MAPbI3. a displays cos(φx) (see text and Fig. 1) as a function of the cell index along the x-axis for some specific n × 1 × 1 supercells. b shows the electrostatic potential within the domains having charged walls and associated with n = 10, 18, 22, and 26. The drop of the lines in both panels indicate periodicity of the considered supercell
