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Issue 4, 2015
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Anomalously large interface charge in polarity-switchable photovoltaic devices: an indication of mobile ions in organic–inorganic halide perovskites

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Abstract

It is proved that a large amount of mobile ions exist in organic–inorganic halide perovskites. The accumulated ions at the interface change the band bending of the semiconductor, leading to polarity-switchable photovoltaic devices. The interface charge significantly influences the function and performance of perovskite devices. The discovery of the interface charge has important implications for current–voltage hysteresis in perovskite solar cells.

Graphical abstract: Anomalously large interface charge in polarity-switchable photovoltaic devices: an indication of mobile ions in organic–inorganic halide perovskites

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Article information


Submitted
24 Dec 2014
Accepted
12 Feb 2015
First published
12 Feb 2015

Energy Environ. Sci., 2015,8, 1256-1260
Article type
Communication

Anomalously large interface charge in polarity-switchable photovoltaic devices: an indication of mobile ions in organic–inorganic halide perovskites

Y. Zhao, C. Liang, H. Zhang, D. Li, D. Tian, G. Li, X. Jing, W. Zhang, W. Xiao, Q. Liu, F. Zhang and Z. He, Energy Environ. Sci., 2015, 8, 1256
DOI: 10.1039/C4EE04064C

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