Fluorinated fulleropyrrolidine as universal electron transport material for organic-inorganic and all-inorganic perovskite solar cells
作者:Quan Yuan、Dongwei Han、Siwei Yi、Dongying Zhou、Lai Feng
DOI:10.1016/j.orgel.2019.105492
日期:2020.2
been widely used as electron transport material (ETM) for both organic-inorganic hybrid and all inorganic perovskite solar cells (PeSCs) with inverted structure. However, PC61BM still remains to be improved due to its low electrical conductivity and inferior passivation effect towards perovskite. In this work, we synthesize two perfluorophenyl-substituted fulleropyrrolidines, 2-(perfluorophenyl)-5-
[6,6]-苯基-C 61-丁酸甲酯(PC 61 BM)已被广泛用作具有反向结构的有机-无机杂化和所有无机钙钛矿太阳能电池(PeSC)的电子传输材料(ETM)。然而,由于PC 61 BM的低电导率和对钙钛矿的钝化效果较差,因此仍有待改进。在这项工作中,我们合成了两个全氟苯基取代的全吡咯烷吡啶,2-(全氟苯基)-5-苯基-C 60-全吡咯烷吡啶(FP-i)和2,5-双-(全氟苯基)-C 60-全吡咯烷吡啶(FP-ii )通过修饰的1,3-偶极环加成反应。将FP-i和FP-ii引入到基于有机-无机杂化物和所有无机钙钛矿(CH 3 NH 3 PbCl 3-x I x和CsPbI 2 Br)的反向PeSC中,将其作为ETM。基于FP-i和FP-ii的PeSC表现出良好的光伏性能和设备稳定性,优于或优于PC 61BM。机理研究表明,FP-i和FP-ii具有较高的电导率,更显着的钝化能力和增强的疏水性