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Issue 1, 2017
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The role of layer-by-layer, compact TiO2 films in dye-sensitized photoelectrosynthesis cells

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Abstract

A new insight into improving dye-sensitized photoelectrosynthesis cells (DSPECs) is reported here by using layer-by-layer deposition of compact nanoTiO2 films. These compact films were obtained by a sol–gel method and deposited on conductive glass substrates, beneath a nanoITO/TiO2 core/shell (ITO: tin-doped indium oxide) mesoporous network. The performance of DSPECs having the nanoTiO2-modified photoanode was evaluated and a remarkable enhancement of 53% in photocurrent was achieved, as well as cathodic currents shifted to more negative potentials. The compact TiO2 films on FTO (fluorine-doped tin oxide) improve the contact between core/shell network and conductive glass, and provide an enhanced collection of electrons at the photoanode, achieving a significant advance in DSPEC performance.

Graphical abstract: The role of layer-by-layer, compact TiO2 films in dye-sensitized photoelectrosynthesis cells

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Supplementary files

Article information


Submitted
25 Oct 2016
Accepted
15 Dec 2016
First published
09 Jan 2017

Sustainable Energy Fuels, 2017,1, 112-118
Article type
Paper

The role of layer-by-layer, compact TiO2 films in dye-sensitized photoelectrosynthesis cells

R. L. Coppo, B. H. Farnum, B. D. Sherman, N. Y. Murakami Iha and T. J. Meyer, Sustainable Energy Fuels, 2017, 1, 112
DOI: 10.1039/C6SE00022C

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