SEMICONDUCTOR SENSITIZATION BY RUS2 COLLOIDS ON TIO2 ELECTRODES

被引：31

作者：

ASHOKKUMAR, M ^{[1
]}

KUDO, A ^{[1
]}

SAITO, N ^{[1
]}

SAKATA, T ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,INTERDISCIPLINARY GRAD SCH ENGN & SCI,DEPT ELECTR CHEM,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 229卷 / 4-5期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/0009-2614(94)01098-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

RuS2 (n-type) colloids were prepared in sulfolane by a new technique. Diluted ruthenium disulfide colloidal suspension in sulfolane showed green photoluminescence. The photoelectrochemical behavior of TiO2 electrodes coated with RuS2 colloids was also investigated. These electrodes showed spectral sensitization effect by RuS2 on TiO2 with an increase in the photocurrent response of TiO2 towards longer wavelength spectral region. Photocurrent action spectra of these electrodes qualitatively suggested a band-gap of approximately 2.2-2.8 eV for RuS2, quite wider than that of the bulk material showing size quantization effect. I-V measurement showed a flat-band potential of approximate to -0.15 V (versus Ag/AgCl) for these samples.

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页码：383 / 388

页数：6

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