Diketopyrrolopyrrole or benzodithiophene-arylamine small-molecule hole transporting materials for stable perovskite solar cells
作者:Xuepeng Liu、Fantai Kong、Zhan'ao Tan、Tai Cheng、Wangchao Chen、Ting Yu、Fuling Guo、Jian Chen、Jianxi Yao、Songyuan Dai
DOI:10.1039/c6ra18823k
日期:——
Two simple small-molecular arylamine derivatives 4-methoxy-N-(4-methoxyphenyl)-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)aniline (OMeTPA-DPP) and 4,4′-(4,8-bis((2-ethylhexyl)oxy)benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl)bis(N,N-bis(4-methoxyphenyl)aniline) (OMeTPA-BDT) linked with diketopyrrolopyrrole or benzodithiophene moieties have been synthesized. The new compounds show better thermal
两种简单的小分子芳胺衍生物4-甲氧基-N-(4-甲氧基苯基)-N-(4-(4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基)苯基)苯胺(OMeTPA-DPP)和4,4'-(4,8-双((2-乙基己基)氧基)苯并[1,2- b:4,5 - b ']二噻吩-2,6-二基)bis(已经合成了与二酮吡咯并吡咯或苯并二噻吩部分连接的N,N-双(4-甲氧基苯基)苯胺)(OMeTPA-BDT)。新化合物显示出比spiro-OMeTAD更好的热稳定性。稳态和时间分辨的光致发光表明新化合物具有良好的空穴提取能力。采用OMeTPA-BDT的钙钛矿太阳能电池显示出与spiro-OMeTAD相当的功率转换效率。在一个阳光照射下经过200多个小时的老化后,基于OMeTPA-DPP,OMeTPA-BDT和spiro-OMeTAD的PSC的残留效率分别为8.69%,11.15%和9.08%。结果表明,新开发的化合