Intelligent window coatings: atmospheric pressure chemical vapour deposition of vanadium oxides.
J MATER CHEM
2936 - 2939.
Thin films of the vanadium oxides, V2O5, VO2, VOx(x = 2.00-2.50) and V6O13 were prepared on glass substrates by atmospheric pressure chemical vapour deposition (APCVD) of vanadium tetrachloride and water at 400-550degreesC. The specific phase deposited was found to be dependent on the substrate temperature and the reagent concentrations. The films were characterised by Raman microscopy, X-ray diffraction (XRD), Rutherford backscattering (RBS), scanning electron microscopy (SEM), energy dispersive analysis by X-rays (EDX), reflectance/transmittance and UV absorption spectroscopy. The VO2 films show by Raman microscopy and reflectance/transmittance spectroscopy, reversible switching behaviour at 68degreesC associated with a phase change from monoclinic (MoO2 structure) to tetragonal (TiO2, rutile structure).
|Title:||Intelligent window coatings: atmospheric pressure chemical vapour deposition of vanadium oxides|
|Keywords:||VO2 THIN-FILMS, RAMAN-SCATTERING, TRANSITION, OXIDATION, V6O13, GLASS|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry|
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