Hole-Transporting Small Molecules Based on Thiophene Cores for High Efficiency Perovskite Solar Cells
作者:Hairong Li、Kunwu Fu、Pablo P. Boix、Lydia H. Wong、Anders Hagfeldt、Michael Grätzel、Subodh G. Mhaisalkar、Andrew C. Grimsdale
DOI:10.1002/cssc.201402587
日期:2014.12
electron‐rich molecules, 2,3,4,5‐tetra[4,4′‐bis(methoxyphenyl)aminophen‐4“‐yl]‐thiophene (H111) and 4,4′,5,5′‐tetra[4,4′‐bis(methoxyphenyl)aminophen‐4”‐yl]‐2,2′‐bithiophene (H112), which contain thiophene cores with arylamine side groups, are reported. When used as the hole‐transporting material (HTM) in perovskite‐based solar cell devices, power conversion efficiencies of up to 15.4 % under AM 1.5G solar simulation
两个新的富电子分子,2,3,4,5-tetra [4,4'-双(甲氧基苯基)氨基酚-4“-基]噻吩(H111)和4,4',5,5'-tetra据报道,[4,4'-双(甲氧基苯基)氨基酚-4“-基] -2,2'-联噻吩(H112)含有带有芳胺侧基的噻吩核。当用作钙钛矿基太阳能电池器件的空穴传输材料(HTM)时,在AM 1.5G太阳光模拟下,功率转换效率高达15.4%。这是由不由2,2',7,7'-四(N,N'-二-对甲氧基苯胺),9,9'-螺双芴(spiro-OMeTAD)及其异构体组成的HTM所实现的最高效率。鉴于两种HTM,尤其是H111,它们具有更简单,更便宜的合成方法,因此它们具有巨大的潜力来替代昂贵的spiro-OMeTAD。