Optical and structural characterization of TiO2 films doped with silver nanoparticles obtained by sol-gel method

被引：36

作者：

Ivanova, T. ^{[1
]}

Harizanova, A. ^{[1
]}

Koutzarova, T. ^{[2
]}

Vertruyen, B. ^{[3
]}

机构：

[1] Bulgarian Acad Sci, Cent Lab Solar Energy & New Energy Sources, Sofia, Bulgaria

[2] Bulgarian Acad Sci, Inst Elect, Sofia, Bulgaria

[3] Univ Liege, LCIS SUPRATECS, Inst Chem B6, B-4000 Liege, Belgium

来源：

OPTICAL MATERIALS | 2013年 / 36卷 / 02期

关键词：

Sol-gel; TiO2; Silver nanoparticles; Optical properties; AG NANOPARTICLES; THIN-FILM;

D O I：

10.1016/j.optmat.2013.08.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanostructured titanium oxide films with incorporated Ag nanoparticles were deposited by sol-gel spin coating method. The films were annealed at 300 degrees C, 400 degrees C, 500 degrees C and 600 degrees 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. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：207 / 213

页数：7

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