Figure 7
From: Self-healing perovskite solar cells based on copolymer-templated TiO2 electron transport layer
(a) Schematic representation of the mechanism for the self-healing perovskite on surface templated TiO2. (b) Images of perovskite films in healing test in the beginning, upon water-spraying, and after 6 min (movies and other images are in the supporting information), and (c) contact angle images of water on the templated structure (22°) and random porous (67°) TiO2 structure.
