Highly efficient bifacial semitransparent perovskite solar cells based on molecular doping of CuSCN hole transport layer
Hou Shixin1, 2, 3, 4, 5, Shi Biao1, 2, 3, 4, 5, Wang Pengyang1, 2, 3, 4, 5, †, Li Yucheng1, 2, 3, 4, 5, Zhang Jie1, 2, 3, 4, 5, Chen Peirun1, 2, 3, 4, 5, Chen Bingbing1, 2, 3, 4, 5, Hou Fuhua1, 2, 3, 4, 5, Huang Qian1, 2, 3, 4, 5, Ding Yi1, 2, 3, 4, 5, Li Yuelong1, 2, 3, 4, 5, Zhang Dekun1, 2, 3, 4, 5, Xu Shengzhi1, 2, 3, 4, 5, Zhao Ying1, 2, 3, 4, 5, Zhang Xiaodan1, 2, 3, 4, 5, ‡
       

(a) Dark J–V curves of PSCs with CuSCN or F4TCNQ-doped CuSCN; SEM [(b) and (c)] and AFM [(d) and (e)] topographic images of CuSCN and F4TCNQ-doped CuSCN on the CsFAMA perovskite films. The scale bar is 1 μm for each SEM image and the scan scale is 10 μm × 10 μm for AFM images. (f) Current–voltage curves of CuSCN and F4TCNQ-doped CuSCN thin films.