Photocurrent instability of PbS-sensitized TiO2 electrodes in S2- and SO32- solution

被引：13

作者：

Hong, JS

Choi, DS

Kang, MG

Kim, D

Kim, KJ ^{[1
]}

机构：

[1] Korea Univ, Div Chem & Mol Engn, Seoul 136701, South Korea

[2] Korea Univ, Div Mat Sci & Engn, Seoul 136701, South Korea

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2001年 / 143卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

TiO2; PbS; photocurrent instability; PbSO4;

D O I：

10.1016/S1010-6030(01)00455-5

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：

The mechanism of photocurrent decay with time of illumination of Pbs-coated TiO2 (PbS/TiO2) photoelectrochemical cells in S2- and SO32- solution was investigated. The photocurrent decay at short circuit can primarily be attributed to the formation of PbSO4 on the surface of PbS, followed by the dissolution of PbSO4 into the aqueous solution. In the presence of pyridine or ethanol in the solution, the J(sc) decay with time of illumination is reduced due to the suppression of the PbSO4 formation. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：87 / 92

页数：6

共 24 条

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