Extrinsic ion migration in perovskite solar cells

Authors: Zhen Li, Chuanxiao Xiao, Ye Yang, Steven P. Harvey, Dong Hoe Kim, Jeffrey A. Christians, Mengjin Yang, Philip Schulz, Sanjini U. Nanayakkara, Chun-Sheng Jiang, Joseph M. Luther, Joseph J. Berry, Matthew C. Beard, Mowafak Al‐Jassim, Kai Zhu - Energy & Environmental Science 2017 cited by 620

Extrinsic ions (e.g., Li+) migrate across perovskite solar cells and modify the TiO2 layer, affecting device performance and hysteresis.