MECHANISM OF LUMINESCENCE QUENCHING OF CDS SINGLE-CRYSTAL BY REDOX SPECIES - ELECTRIC-FIELD EFFECT OR ELECTRON-TRANSFER QUENCHING

被引：2

作者：

HIRAMOTO, M

HASHIMOTO, K

SAKATA, T

机构：

[1] UNIV TOKYO,FAC ENGN,DEPT SYNTHET CHEM,BUNKYO KU,TOKYO 113,JAPAN

[2] TOKYO INST TECHNOL,DEPT ELECTR CHEM,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 182卷 / 02期

关键词：

D O I：

10.1016/0009-2614(91)80117-G

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：

Photoluminescence of a single-crystalline CdS electrode was measured in solutions of various redox species under potentiostatic conditions. Both the green and red emission of CdS crystal were quenched efficiently by the addition of various electron acceptors. Quenching efficiency depends both on the electrode potential and the kind of electron acceptors. Since the flat-band potential is hardly affected by the addition of electron acceptors, it is concluded that the luminescence quenching by these electron acceptors is not due to an electric-field effect but due to the interfacial electron transfer.

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页码：139 / 142

页数：4

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