Nonplanar Organic Sensitizers Featuring a Tetraphenylethene Structure and Double Electron-Withdrawing Anchoring Groups

被引：36

作者：

Zhang, Fangshuai ^{[1
,2
]}

Fan, Jie ^{[1
]}

Yu, Huijuan ^{[1
]}

Ke, Zhuofeng ^{[1
]}

Nie, Changming ^{[2
]}

Kuang, Daibin ^{[1
]}

Shao, Guang ^{[1
]}

Su, Chengyong ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China

[2] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China

来源：

JOURNAL OF ORGANIC CHEMISTRY | 2015年 / 80卷 / 18期

基金：

中国国家自然科学基金;

关键词：

AGGREGATION-INDUCED EMISSION; SOLAR-CELLS; HIGHLY EFFICIENT; DYE; TRIPHENYLAMINE; BEARING; DONORS; PERFORMANCE; DERIVATIVES; CARBAZOLE;

D O I：

10.1021/acs.joc.5b01140

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Two metal-free organic sensitizers containing two N,N-diethylaniline (DEA) moieties and a twisted 1,1,2,2-tetraphenylethene (TPE) structure, dye SD with one anchoring group and dye DD with two anchoring groups, were synthesized and applied in dye-sensitized solar cells (DSSCs). The introduction of a nonplanar TPE structure was used to form a series of propeller-like structures and reduce the tendency of dyes to randomly aggregate on TiO2 surface, but without importing an aggregation-induced emission (AIE) property. The thermal stabilities, UV-vis absorption spectra, electrochemical properties, and photovoltaic parameters of DSSCs with these two dyes were systematically studied and compared with each other. The overall conversion efficiencies (eta) of 4.56% for dye SD and 6.08% for dye DD were obtained under AM 1.5 G irradiation.

引用

页码：9034 / 9040

页数：7

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