Sandwiched electrode buffer for efficient and stable perovskite solar cells with dual back surface fields

Huachao Zai, Jie Su, Cheng Zhu, Yihua Chen, Yue Ma, Pengxiang Zhang, Sai Ma, Xiao Zhang, Haipeng Xie, Rundong Fan, Zijian Huang, Nengxu Li, Yù Zhang, Yujing Li, Yang Bai, Ziyan Gao, Xueyun Wang, Jiawang Hong, Kangwen Sun, Jingjing Chang, Huanping Zhou, Qi Chen