Photoelectrode properties of nanocomposite thin films based on interfacing nanosized noble metal and TiO2

被引：12

作者：

Yoon, JW ^{[1
]}

Sasaki, T ^{[1
]}

Koshizaki, N ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Nanoarchitect Res Ctr, Tsukuba, Ibaraki 3058565, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2002年 / 5卷 / 11期

关键词：

D O I：

10.1149/1.1511341

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The M/TiO2(M = Pt, Au) nanocomposite thin films were deposited on quartz and indium-tin oxide glass substrates using a cosputtering method. TiO2 in rutile form is a dominant crystalline phase for as-deposited nanocomposite films. Along with heat-treatment to 600degreesC, X-ray diffraction peaks of the rutile phase as well as peaks of noble metal increased in intensity and decreased in width, indicating the growth of crystallites. Gold and platinum crystallites after this heat-treatment measured 9.1 and 15.3 nm, respectively. From the X-ray photoelectron spectroscopy results, Au and Pt existed as a metallic phase in the bulk of the TiO2 matrix. The anodic photocurrents of M/TiO2 (M = Au, Pt) thin films were observed not only in the UV range but also in the visible light range. (C) 2002 The Electrochemical Society.

引用

页码：A256 / A258

页数：3

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