Preparation of Pt/TiO2 nanocomposite films using co-sputtering method

被引：25

作者：

Sasaki, T

Koshizaki, N

Terauchi, S

Umehara, H

Matsumoto, Y

Koinuma, M

机构：

[1] AIST, Agcy Ind Sci & Technol, Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 3058565, Japan

[2] Kumamoto Univ, Fac Engn, Dept Appl Chem & Biochem, Kumamoto 8608565, Japan

来源：

NANOSTRUCTURED MATERIALS | 1997年 / 8卷 / 08期

关键词：

D O I：

10.1016/S0965-9773(98)00036-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pt/TiO2 nanocomposite films were deposited on quartz glass substrates by the co-sputtering method. TEM, TED, XPS and XRD measurements revealed that heated Pt/TiO2 nanocomposite films consist of Pt metal nanoparticles in the matrix of rutile-type TiO2. The size of Pt nanoparticles in the composite films increased as the heat-treatment temperature. Nanoparticle size in the heated nanocomposite film with a Pt/Ti atomic ratio of 0.18 at 600 degrees C ranged from 5 to 10 nm. Optical absorption edges of the Pt/TiO2 nanocomposite films were observed at 450 nm. Luminescence emission was observed by UV irradiation at 700 nm at liquid nitrogen temperature. Some energy levels can be produced in the band gap of TiO2 by the homogeneous dispersion of Pt nanoparticles in the TiO2 matrix. (C) 1998 Acta Metallurgica Inc.

引用

页码：1077 / 1083

页数：7

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