Formation and investigation of sol-gel TiO2-V2O5 system

A TiO2-V2O5 colloidal solution was obtained with a stability of more than 2 years. Xerogels, dried at 80 C and treated at 300 and 560 C, were investigated by FTIR spectroscopy. Powder XRD measurements showed that the sample treated at 300 C was amorphous and crystallisation began after 450 C. Vanadi...

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Veröffentlicht in:	Materials letters 2002-08, Vol.55 (5), p.327-333
Hauptverfasser:	IVANOVA, T, HARIZANOVA, A, SURTCHEV, M
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Liquid phase epitaxy deposition from liquid phases (melts, solutions, and surface layers on liquids) Materials science Methods of deposition of films and coatings film growth and epitaxy Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of specific thin films Other semiconductors Physics
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Zusammenfassung:	A TiO2-V2O5 colloidal solution was obtained with a stability of more than 2 years. Xerogels, dried at 80 C and treated at 300 and 560 C, were investigated by FTIR spectroscopy. Powder XRD measurements showed that the sample treated at 300 C was amorphous and crystallisation began after 450 C. Vanadium-doped titanium dioxide thin films were prepared by using sol-gel dipping. Highly transparent TiO2-V2O5 coatings were formed on quartz substrates. The optical properties of the sol-gel mixed thin films were characterised as a function of the annealing temperatures from 200 to 650 C. 19 refs.
ISSN:	0167-577X 1873-4979
DOI:	10.1016/S0167-577X(02)00387-7