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

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 perfo...

Full description

Saved in:
Bibliographic Details
Published in:Energy & environmental science 2015-01, Vol.8 (4), p.1256-1260
Main Authors: Zhao, Yong, Liang, Chunjun, Zhang, Huimin, Li, Dan, Tian, Ding, Li, Guobao, Jing, Xiping, Zhang, Wenguan, Xiao, Weikang, Liu, Qian, Zhang, Fujun, He, Zhiqun
Format: Article
Language:English
Subjects:
Bending machines
Charge
Halides
Hysteresis
Perovskites
Photovoltaic cells
Semiconductors
Solar cells
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1754-5692
1754-5706
DOI:10.1039/c4ee04064c