Catechol as an efficient anchoring group for attachment of ruthenium-polypyridine photosensitisers to solar cells based on nanocrystalline TiO2 films

C. R. Rice, M. D. Ward, M. K. Nazeeruddin, M. Gratzel

Research output: Contribution to journalArticle

114 Citations (Scopus)


The Ru(II)-polypyridyl complexes [Ru(H2L)(terpy)][PF6]2 (1) and [Bu4N][Ru(H2L)(NCS)3] (2) (H2L = 4'-(3,4-dihydroxyphenyl)-2,2':6',2'-terpyridine), in which H2L is coordinated as a terpyridyl fragment with a catechol site pendant from the C4' position, adhere effectively to nanocrystalline TiO2 (anatase) surfaces via the pendant catechol group; incident photon-to-current conversion efficiency values of up to 50% were obtained in their photocurrent action spectra, suggesting flint the catechol unit may be a convenient and effective anchoring group for attaching dyes to TiO2-based photovoltaic cells.

Original languageEnglish
Pages (from-to)651-652
Number of pages2
JournalNew Journal of Chemistry
Issue number9
Publication statusPublished - 2000
Externally publishedYes


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