Lateral-Structure Single-Crystal Hybrid Perovskite Solar Cells via Piezoelectric Poling.

Dong, Qingfeng; Song, Jingfeng; Fang, Yanjun; Shao, Yuchuan; Ducharme, Stephen; Huang, Jinsong · Adv Mater · 2016

basic_science · Level V

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Abstract

Single-crystal perovskite solar cells with a lateral structure yield an efficiency enhancement 44-fold that of polycrystalline thin films, due to the much longer carrier diffusion length. A piezoelectric effect observed in perovskite single-crystal and the strain-generated grain-boundaries enable ion migration to form a p-i-n structure.