Characterization of nanostructured TiO2:Ag films: structural and optical properties

INERA Conference: Vapor Phase Technologies for Metal Oxide and Carbon Nanostructures

物理学;材料科学

Ivanova, T.^1 ; Harizanova, A.^1 ; Koutzarova, T.^2 ; Vertruyen, B.^3

Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, blvd. Tzarigradsko chaussee 72, Sofia, Bulgaria^1

Institute of Electronics, Bulgarian Academy of Sciences, blvd. Tzarigradsko chaussee 72, Sofia, Bulgaria^2

LCIS/SUPRATECS, Institute of Chemistry B6, University of Liege, Sart-Tilman, Liege

B-4000, Belgium^3

关键词: FT-IR study;    Layer deposition;    Nano-structured TiO2;    Optical characterization;    Oxide phasis;    Silver concentration;    Structural and optical properties;    UV-vis spectroscopy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/764/1/012019/pdf
DOI  :  10.1088/1742-6596/764/1/012019

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

TiO2:Ag nanocomposites have been prepared by sol-gel method with varying silver concentration. Different technological approaches are employed to study the formation of Ag nanoparticles in titanium dioxide matrix. The obtained thin films are either thermally treated at temperatures from 300 to 600oC or UV irradiated for 15 minutes between layer deposition. XRD and FTIR studies reveal that Ag is incorporated in TiO2films as nanoparticles and no Ag oxide phases are detected. Optical characterization performed by UV-VIS spectroscopy confirms the formation of silver nanoparticles. The influence of thermal treatment and UV radiation on the optical and structural properties is studied.