Light-induced electron transfer on a trichromophore dye modified ITO electrode

被引：41

作者：

Wu, DG ^{[1
]}

Huang, CH ^{[1
]}

Gan, LB ^{[1
]}

Zhang, W ^{[1
]}

Zheng, J ^{[1
]}

Luo, HX ^{[1
]}

Li, NQ ^{[1
]}

机构：

[1] Peking Univ, State Key Lab Rare Earth Mat Chem & Appl, Beijing 100871, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1999年 / 103卷 / 21期

关键词：

D O I：

10.1021/jp983463o

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：

A novel trichromophore amphiphilic dye N-methyl-2,4,6-tri-(4-dioctadecylamino)stilbazolium iodide (P(3)n) has been synthesized and successfully transferred on semiconducting transparent indium-tin oxide (ITO) electrodes by a Langmuir-Blodgett (LB) technique. Photocurrent generation was studied in a conventional photoelectrochemical cell. An action spectrum of the photocurrent generation is coincident with the absorption spectrum of the LB film-modified electrode, indicating that the dye aggregate in the LB film is responsible for the photocurrent. Some factors that may affect the observed photocurrent, such as the presence of O-2, the concentrations of methyl viologen (MV2+) and hydroquinone (H(2)Q), pH, and the bias voltage have been investigated. Models fur the mechanism of light-induced electron transfer under different conditions are proposed.

引用

页码：4377 / 4381

页数：5

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