Nature Materials
February 2, 2015
Giant switchable photovoltaic eect in organometal trihalide perovskite devices
Zhengguo Xiao1,2†, Yongbo Yuan1,2†, Yuchuan Shao1,2†, QiWang1,2, Qingfeng Dong1,2, Cheng Bi1,2, Pankaj Sharma2,3, Alexei Gruverman2,3 ,Jinsong Huang1,2*
1 Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0656, USA.
2 Nebraska Center for Materials, Nanoscience, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0298, USA.
3 Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0299, USA.
† These authors contributed equally to this work.
10.1038/nmat4150
The direction of the current photogenerated in organicinorganic perovskite films can be switched by poling the material with low electric fields that induce a reversible ion drift. Hybrid perovskites may thus find application as memristor devices.
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