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Issue 12, 2003
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Atmospheric pressure chemical vapour deposition of thin films of Nb2O5 on glass

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Abstract

A novel route involving atmospheric pressure chemical vapour deposition (APCVD) is reported for coating Nb2O5 onto glass substrates via the reaction of NbCl5 and ethyl acetate at 400–660 °C. Raman spectroscopy is shown to be a simple diagnostic tool for the analysis of these thin films. The contact angle of water on Nb2O5-coated glass drops on UV irradiation from 60° to 5–20°. XPS Analysis showed that the Nb∶O ratio of the film was 1∶2.5. Glancing angle X-ray diffraction showed that all films were crystalline, with only a single phase being observed; this has some preferred orientation in the (201) plane of Nb2O5. The niobium(V) oxide materials show minimal photocatalytic ability to degrade organic material.

Graphical abstract: Atmospheric pressure chemical vapour deposition of thin films of Nb2O5 on glass

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Article information


Submitted
08 Jul 2003
Accepted
17 Sep 2003
First published
15 Oct 2003

J. Mater. Chem., 2003,13, 2952-2956
Article type
Paper

Atmospheric pressure chemical vapour deposition of thin films of Nb2O5 on glass

S. A. O'Neill, I. P. Parkin, R. J. H. Clark, A. Mills and N. Elliott, J. Mater. Chem., 2003, 13, 2952
DOI: 10.1039/B307768N

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