Highly stable sensitizer dyes for dye-sensitized solar cells: role of the oligothiophene moiety

被引：98

作者：

Katoh, Ryuzi ^{[1
]}

Furube, Akihiro ^{[1
]}

Mori, Shogo ^{[2
]}

Miyashita, Masanori ^{[2
]}

Sunahara, Kenji ^{[2
]}

Koumura, Nagatoshi ^{[1
]}

Hara, Kohjiro ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan

[2] Shinshu Univ, Fac Text Sci & Technol, Div Chem & Mat, Nagano 3868567, Japan

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2009年 / 2卷 / 05期

关键词：

NANOCRYSTALLINE TIO2 FILMS; ELECTRON-TRANSFER KINETICS; MOLECULAR DESIGN; COUMARIN DYES; EFFICIENT; INJECTION; ENERGY;

D O I：

10.1039/b900372j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photostability of five sensitizer dyes with and without an oligothiophene moiety was studied by means of spectroscopic techniques to determine the dyes' suitability for dye-sensitized solar cells. We examined the effect of light irradiation on the dyes adsorbed on nanocrystalline TiO2 films under ambient conditions and found that the dyes containing an oligothiophene moiety showed high stability. The results of transient absorption measurements suggest that the location of holes on the oligothiophene moieties was responsible for this observed high stability.

引用

页码：542 / 546

页数：5

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