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Lateral‐Structure Single‐Crystal Hybrid Perovskite Solar Cells via Piezoelectric Poling
Author(s) -
Dong Qingfeng,
Song Jingfeng,
Fang Yanjun,
Shao Yuchuan,
Ducharme Stephen,
Huang Jinsong
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201505244
Subject(s) - materials science , poling , piezoelectricity , perovskite (structure) , crystallite , optoelectronics , crystal structure , grain boundary , crystallography , single crystal , composite material , ferroelectricity , microstructure , dielectric , chemistry , metallurgy
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.