用于无铅钙钛矿太阳能电池的混合有机阳离子碘化锡，效率达8.12% 。

Mixed-Organic-Cation Tin Iodide for Lead-Free Perovskite Solar Cells with an Efficiency of 8.12.

作者信息

Zhao Ziran, Gu Feidan, Li Yunlong, Sun Weihai, Ye Senyun, Rao Haixia, Liu Zhiwei, Bian Zuqiang, Huang Chunhui

机构信息

Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular Engineering Peking University Beijing 100871 P. R. China.

Institute of Modern Optics and State Key Laboratory for Artificial Microstructure and Mesoscopic PhysicsSchool of Physics Peking University Beijing 100871 P. R. China.

出版信息

Adv Sci (Weinh). 2017 Jul 14;4(11):1700204. doi: 10.1002/advs.201700204. eCollection 2017 Nov.

In this work, a fully tin-based, mixed-organic-cation perovskite absorber (FA) (MA) SnI (FA = NHCH = NH, MA = CHNH) for lead-free perovskite solar cells (PSCs) with inverted structure is presented. By optimizing the ratio of FA and MA cations, a maximum power conversion efficiency of 8.12% is achieved for the (FA)(MA)SnI-based device along with a high open-circuit voltage of 0.61 V, which originates from improved perovskite film morphology and inhibits recombination process in the device. The cation-mixing approach proves to be a facile method for the efficiency enhancement of tin-based PSCs.