Improving the performance of perovskite solar cells with glycerol-doped PEDOT:PSS buffer layer
Li Jian-Feng†, , Zhao Chuang, Zhang Heng, Tong Jun-Feng, Zhang Peng, Yang Chun-Yan, Xia Yang-Jun‡, , Fan Duo-Wang
       

AFM topographic images of PEDOT:PSS films (a) without glycerol treatment, (b) with 3% glycerol treatment, (c) with 6% glycerol treatment, and (d) with 9% glycerol.