Fig. 3
From: Tailoring properties of hybrid perovskites by domain-width engineering with charged walls
Tauc plot for bulk of MAPbI3 and P[103]&P[−103] multidomains corresponding to the supercells n × 1 × 1, where n = 2, 8, 14, and 22. Their optical band gap of multidomains are all in the range of 1.5–1.6 eV, and is therefore very close to that of the bulk (which is presently computed to be 1.59 eV)
