Article (Scientific journals)
Optical and structural characterization of TiO2 films doped with silver nanoparticles obtained by sol-gel method
Ivanova, T.; Harizanova, A.; Koutzarova, T. et al.
2013In Optical Materials, 36, p. 207
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Keywords :
Optical properties; Silver nanoparticles; Sol-gel; TiO2
Abstract :
[en] Nanostructured titanium oxide films with incorporated Ag nanoparticles were deposited by sol-gel spin coating method. The films were annealed at 300 °C, 400 °C, 500 °C and 600 °C in oxygen and nitrogen ambient. X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and UV-VIS spectroscopy had been applied for studying the influence of the thermal treatments and the gas ambient on the structural and optical properties of TiO2 and TiO2:Ag films. The XRD analysis revealed the presence of metallic Ag phase without traces of silver oxides and these results were confirmed by FTIR spectra. It has been revealed that the annealing temperatures and the ambient, where the annealing is carried out is crucial for TiO2 crystallization, when there is Ag incorporation and especially for appearance of anatase and rutile phase. The nitrogen and oxygen ambient influences quite different the crystallization of TiO2:Ag films. Transmission and absorption spectra have been analyzed. Optical band gap values were evaluated for pure titania and Ag incorporated TiO2 films. © 2013 Elsevier B.V. All rights reserved.
Disciplines :
Chemistry
Author, co-author :
Ivanova, T.;  Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, blvd. Tzarigradsko chaussee 72, Sofia, Bulgaria
Harizanova, A.;  Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, blvd. Tzarigradsko chaussee 72, Sofia, Bulgaria
Koutzarova, T.;  Institute of Electronics, Bulgarian Academy of Sciences, blvd. Tzarigradsko chaussee 72, Sofia, Bulgaria
Vertruyen, Benedicte  ;  Université de Liège - ULiège > Département de Chimie (sciences) > Chimie Inorganique Structurale
Language :
English
Title :
Optical and structural characterization of TiO2 films doped with silver nanoparticles obtained by sol-gel method
Publication date :
2013
Journal title :
Optical Materials
ISSN :
0925-3467
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
36
Pages :
207
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 22 November 2013

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