科研之友
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摘要
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.
- 出版日期2015
- 单位北京交通大学; 北京印刷学院; 中国地质大学（北京）; 北京大学
