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Title: Aerosol-assisted CVD of bismuth vanadate thin films and their photoelectrochemical properties
Authors: Brack, Paul
Sagu, Jagdeep S.
Peiris, Nirmal
McInnes, Andrew
Senili, Mauro
Wijayantha, K.G.U.
Marken, Frank
Selli, Elena
Keywords: AACVD
BiVO4
Photoelectrochemical
Thin film
Water splitting
Issue Date: 2015
Publisher: © The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Citation: BRACK, P. ... et al., 2015. Aerosol-assisted CVD of bismuth vanadate thin films and their photoelectrochemical properties. Chemical Vapor Deposition, 21(1-2-3), pp. 41-45.
Abstract: Thin film bismuth vanadate (BiVO4) photoelectrodes are prepared by aerosol-assisted (AA)CVD for the first time on fluorine-doped tin oxide (FTO) glass substrates. The BiVO4 photoelectrodes are characterised by X-ray diffraction (XRD), Raman spectroscopy (RS), and energy-dispersive X-ray (EDX) spectroscopy and are found to consist of phase-pure monoclinic BiVO4. Scanning electron microscopy (SEM) analysis shows that the thin film is uniform with a porous structure, and consists of particles approximately 75-125nm in diameter. The photoelectrochemical (PEC) properties of the BiVO4 photoelectrodes are studied in aqueous 1M Na2SO4 and show photocurrent densities of 0.4mAcm-2, and a maximum incident-photon-to-electron conversion efficiency (IPCE) of 19% at 1.23V vs. the reversible hydrogen electrode (RHE). BiVO4 photoelectrodes prepared by this method are thus highly promising for use in PEC water-splitting cells. Thin film bismuth vanadate (BiVO4) photoelectrodes are prepared by AACVD for the first time on fluorine-doped tin oxide (FTO) glass substrates. The photoelectrochemical (PEC) properties of the BiVO4 photoelectrodes are studied in aqueous 1M Na2SO4 and show photocurrent densities of 0.4mAcm-2 and a maximum incident-photon-to-electron conversion efficiency (IPCE) of 19% at 1.23V vs. RHE. BiVO4 photoelectrodes prepared by this method are highly promising for use in PEC water-splitting cells.
Description: This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Full details of the CC BY licence are available at: http://creativecommons.org/licenses/by/4.0/
Sponsor: UK ESPRC through the Doctoral Training Centre for Hydrogen, Fuel cells and their applications [grant number: EP/G031088/1]
Version: Published
DOI: 10.1002/cvde.201407142
URI: https://dspace.lboro.ac.uk/2134/16834
Publisher Link: http://dx.doi.org/10.1002/cvde.201407142
ISSN: 0948-1907
Appears in Collections:Published Articles (Chemistry)

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