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

Lookup NU author(s): Fiona Black, Chris Wood, Gareth Summers, Dr Elizabeth Gibson

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


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 the presence of the redox couple. These results have important implications on the study of electron transfer at dye|semiconductor interfaces for solar energy applications.


Publication metadata

Author(s): Black FA, Wood CJ, Ngwerume S, Summers GS, Clark IP, Towrie M, Camp JE, Gibson EA

Publication type: Article

Publication status: Published

Journal: Faraday Discussions

Year: 2017

Volume: 198

Pages: 449-461

Print publication date: 01/06/2017

Online publication date: 04/01/2017

Acceptance date: 04/01/2017

ISSN (print): 1359-6640

ISSN (electronic): 1364-5498

Publisher: Royal Society of Chemistry

URL: http://dx.doi.org/10.1039/C6FD00228E

DOI: 10.1039/C6FD00228E

Data Source Location

http://dx.doi.org/10.17634/154300-41


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