Increasing p-type dye sensitised solar cell photovoltages using polyoxometalates

El Moll, Hani, Black, Fiona A, Wood, Christopher J, Al-Yasari, Ahmed, Marri, Anil Reddy, Sazanovich, Igor V, Gibson, Elizabeth A and Fielden, John (2017) Increasing p-type dye sensitised solar cell photovoltages using polyoxometalates. Physical Chemistry Chemical Physics, 19. pp. 18831-18835. ISSN 1463-9076

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Abstract

Lindqvist polyoxometalate (POM) additives increase VOC in p-type DSSCs by up to 140%, yielding substantial efficiency gains for poorly matched dyes and redox mediators. For better dye/electrolyte combinations, these gains are typically outweighed by losses in JSC. Charge lifetime and transient IR measurements show that this is due to retardation of both recombination and electron transfer to the mediator, and a positive shift in the NiO valence band edge. The POMs also show their own, limited sensitizing effect.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Pure Connector
Date Deposited: 28 Jul 2017 05:07
Last Modified: 28 Oct 2019 16:03
URI: https://ueaeprints.uea.ac.uk/id/eprint/64288
DOI: 10.1039/C7CP01558E

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