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Temperature‐Dependent Bias Poling and Hysteresis in Planar Organo‐Metal Halide Perovskite Photovoltaic Cells
Author(s) -
Zou Yunlong,
Holmes Russell J.
Publication year - 2016
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201501994
Subject(s) - poling , materials science , hysteresis , photovoltaic system , perovskite (structure) , planar , halide , optoelectronics , biasing , voltage , chemical engineering , condensed matter physics , inorganic chemistry , dielectric , electrical engineering , ferroelectricity , computer science , chemistry , physics , computer graphics (images) , engineering
The efficiency of perovskite photovoltaic cells is greatly impacted by the anomalous hysteresis effect. It is found that by applying a forward bias prior to testing, device efficiency (η p ) can be significantly improved. This bias poling effect can be stabilized at temperatures ≤250 K. As a result, hysteresis free operation of a planar perovskite photovoltaic cell is achieved at 170 K with η p of 19%.