A Multifunctional Bis-Adduct Fullerene for Efficient Printable Mesoscopic Perovskite Solar Cells

• DOI: 10.1021/acsami.7b18945
• Publication Date: 2018-03-20T17:53:54Z
• Authors: Chengbo Tian; Shujing Zhang; Anyi Mei; Yaoguang Rong; Yue Hu; Kai Du; Miao Duan; Yusong Sheng; Pei Jiang; Gengzhao Xu; Hongwei Han
• Keywords: Passivation; Mesoscopic physics

Printable mesoscopic perovskite solar cells (PMPSCs) have exhibited great attractive prospects in the energy conversion field due to their high stability and potential scalability. However, thick film mesoporous layers challenges charge transportation increase grain boundary defects, limiting performance of PMPSCs. It is critical not only improve electric property but also passivate traps device performance. Herein we synthesized a bis-adduct 2,5-(dimethyl ester) C60 fulleropyrrolidine (bis-DMEC60) via rational molecular design incorporated it into The enhanced chemical interactions between bis-DMEC60 conductivity as well elevate passivation effect at boundaries. As result, fill factor (FF) power efficiency (PCE) PMPSCs containing reached 0.71 15.21%, respectively, significantly superior analogous monoadduct derivative (DMEC60)-containing control devices. This work suggests that fullerene derivatives with multifunctional groups are promising for achieving high-performance