Hole-Transporting Small Molecules Based on Thiophene Cores for High Efficiency Perovskite Solar Cells

被引：152

作者：

Li, Hairong ^{[1
]}

Fu, Kunwu ^{[1
]}

Boix, Pablo P. ^{[1
]}

Wong, Lydia H. ^{[1
]}

Hagfeldt, Anders ^{[2
]}

Graetzel, Michael ^{[3
]}

Mhaisalkar, Subodh G. ^{[1
]}

Grimsdale, Andrew C. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Energy Res Inst NTU ERI N, Sch Mat Sci & Engn, Singapore 637553, Singapore

[2] Uppsala Univ, Dept Chem Angstrom, S-75120 Uppsala, Sweden

[3] Ecole Polytech Fed Lausanne, Lab Photon & Interfaces, Inst Chem Sci & Engn, Sch Basic Sci, CH-1015 Lausanne, Switzerland

来源：

CHEMSUSCHEM | 2014年 / 7卷 / 12期

基金：

新加坡国家研究基金会;

关键词：

dyes/pigments; electrochemistry; heterocycles; perovskite phases; solar cells; RECOMBINATION; PERFORMANCE; DERIVATIVES; ELECTRON;

D O I：

10.1002/cssc.201402587

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two new 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 were obtained. This is the highest efficiency achieved with HTMs not composed of 2,2',7,7'-tetrakis(N,N'-di-p-methoxyphenylamine)-9,9'-spirobifluorene (spiro-OMeTAD) and its isomers. Both HTMs, especially H111, have great potential to replace expensive spiro-OMeTAD given their much simpler and less expensive syntheses.

引用

页码：3420 / 3425

页数：6

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