Achieving 19.4% organic solar cell via an in situ formation of p-i-n structure with built-in interpenetrating network

Ying Zhang, Wanyuan Deng, Christopher E. Petoukhoff, Xinxin Xia, Yongwen Lang, Hao Xia, Hua Tang, Hrisheekesh Thachoth Chandran, Sudhi Mahadevan, Kuan Liu, W.K. Fong, Yongmin Luo, Jiaying Wu, Sai‐Wing Tsang, Frédéric Laquai, Hongbin Wu, Xinhui Lu, Yang Yang, Gang Li