Modification of electron transfer properties in photoelectrochemical solar cells by substituting {Ru(terpy)2}2+ dyes with thiophene

被引：39

作者：

Figgemeier, E

Aranyos, V

Constable, EC

Handel, RW

Housecroft, CE

Risinger, C

Hagfeldt, A

Mukhtar, E

机构：

[1] Univ Uppsala, Dept Phys Chem, S-75321 Uppsala, Sweden

[2] Univ Basel, Inst Anorgan Chem, Dept Chem, CH-4056 Basel, Switzerland

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2004年 / 7卷 / 01期

关键词：

2,2 ': 6 ',2 ''-terpyridine; 2-thienyl-2,2 ': 6 ',2 ''-terpyridine; electron transfer; photoelectrochernical solar cells; TiO2; surface;

D O I：

10.1016/j.inoche.2003.10.016

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A comparison of the properties of the 2-thienyl-substituted carboxyphenyl {Ru-II(terpy)(2)} dyes with their non-substituted analogues has enabled us to gain insight into the electronic properties that are prerequisite for efficient electron injection into the TiO2 conduction band in photoelectrochemical solar cells. Introducing the thienyl group has a profound effect upon the efficiency of photoinduced electron injection. This effect can be explained by a significant shift in the LUMO position from the terpy ligand anchored on the TiO2 surface towards the 2-thienyl substituted ligand, which is shown by means of electrochemistry and semi-empirical calculations. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：117 / 121

页数：5

共 25 条

[1] Photoinduced electron transfer reactions in a porphyrin-viologen complex:: Observation of S2 to S1 relaxation and electron transfer from the S2 state [J].