Charge-transfer dynamics at the dye-semiconductor interface of photocathodes for solar energy applications

Fiona A Black, Christopher J. Wood, Simbarashe Ngwerume, Gareth H. Summers, Ian P Clark, Michael Towrie, Jason Camp, Elizabeth A. Gibson

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This article describes a comparison between the photophysical properties of two charge-transfer dyes adsorbed onto NiO via two different binding moieties. Transient spectroscopy measurements suggest that the structure of the anchoring group affects both the rate of charge recombination between the dye and NiO surface and the rate of dye regeneration by an iodide/triiodide redox couple. This is consistent with the performance of the dyes in p-type dye sensitised solar cells. A key finding was that the recombination rate differed in presence of the redox couple. This has important implications on the study of electron transfer at dye|semiconductor interfaces for solar energy applications.
Original languageEnglish
Pages (from-to)449-461
Number of pages13
JournalFaraday Discussions
Volume198
Early online date4 Jan 2017
DOIs
Publication statusPublished - 2017

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    Black, F. A., Wood, C. J., Ngwerume, S., Summers, G. H., Clark, I. P., Towrie, M., ... Gibson, E. A. (2017). Charge-transfer dynamics at the dye-semiconductor interface of photocathodes for solar energy applications. Faraday Discussions, 198, 449-461. https://doi.org/10.1039/C6FD00228E