Issue 5, 2009
From the journal:

Energy & Environmental Science

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

Ryuzi Katoh,*a   Akihiro Furube,a   Shogo Mori,b   Masanori Miyashita,b   Kenji Sunahara,b   Nagatoshi Koumuraa  and  Kohjiro Haraa  

* Corresponding authors

a National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki, Japan
E-mail: r-katoh@aist.go.jp

b Division of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano, Japan

Abstract

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.

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

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Article information

DOI
https://doi.org/10.1039/B900372J
Article type
Paper
Submitted
08 Jan 2009
Accepted
10 Mar 2009
First published
23 Mar 2009

Energy Environ. Sci., 2009,2, 542-546

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

R. Katoh, A. Furube, S. Mori, M. Miyashita, K. Sunahara, N. Koumura and K. Hara, Energy Environ. Sci., 2009, 2, 542 DOI: 10.1039/B900372J

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