Dual electron injection from charge-transfer excited states of TiO2-anchored Ru(II)-4,4′-dicarboxy-2,2′-biquinoline complex

被引：36

作者：

Islam, A ^{[1
]}

Hara, K ^{[1
]}

Singh, LP ^{[1
]}

Katoh, R ^{[1
]}

Yanagida, M ^{[1
]}

Murata, S ^{[1
]}

Takahashi, Y ^{[1
]}

Sugihara, H ^{[1
]}

Arakawa, H ^{[1
]}

机构：

[1] Natl Inst Mat & Chem Res, NIMC, Tsukuba, Ibaraki 3058565, Japan

来源：

CHEMISTRY LETTERS | 2000年 / 05期

关键词：

D O I：

10.1246/cl.2000.490

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Dual electron injection phenomenon observed for the first time in dithiocyanato bis(4,4'-dicarboxy-2,2'-biquinoline)-ruthenium(II) when anchored to nanocrystalline TiO2 film indicates an ultrafast rate of electron injection into the conduction band of TiO2 which is competitive to internal conversion and/or intersystem crossing between the two lowest excited MLCT states.

引用

页码：490 / 491

页数：2

共 15 条

[1] PREPARATION AND PHOTOELECTROCHEMICAL CHARACTERIZATION OF THIN SNO(2) NANOCRYSTALLINE SEMICONDUCTOR-FILMS AND THEIR SENSITIZATION WITH BIS(2,2'-BIPYRIDINE)(2,2'-BIPYRIDINE-4,4'-DICARBOXYLIC ACID)RUTHENIUM(II) COMPLEX [J].

BEDJA, I ;

HOTCHANDANI, S ;

KAMAT, PV .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (15) :4133-4140

[2] Ultrafast electron injection: Implications for a photoelectrochemical cell utilizing an anthocyanin dye-sensitized TiO2 nanocrystalline electrode [J].

Cherepy, NJ ;

Smestad, GP ;

Gratzel, M ;

Zhang, JZ .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (45) :9342-9351

[3] Femtosecond dynamics of excited-state evolution in [Ru(bpy)(3)](2+) [J].

Damrauer, NH ;

Cerullo, G ;

Yeh, A ;

Boussie, TR ;

Shank, CV ;

McCusker, JK .

SCIENCE, 1997, 275 (5296) :54-57

[4]

EVANS JP, 1973, J CHEM SOC DA, P204

[5] Photosensitization of TiO2 by [FeII(2,2′-bipyridine-4,4′-dicarboxylic acid)2(CN)2]:: Band selective electron injection from ultra-short-lived excited states [J].

Ferrere, S ;

Gregg, BA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (04) :843-844

[6] CHARGE-TRANSFER EXCITED-STATES OF RUTHENIUM(II) COMPLEXES .2. RELATIONSHIP OF LEVEL PARAMETERS TO MOLECULAR-STRUCTURE [J].

HAGER, GD ;

WATTS, RJ ;

CROSBY, GA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1975, 97 (24) :7037-7042

[7]

Moser JE, 1998, COORDIN CHEM REV, V171, P245

[8] CONVERSION OF LIGHT TO ELECTRICITY BY CIS-X2BIS(2,2'-BIPYRIDYL-4,4'-DICARBOXYLATE)RUTHENIUM(II) CHARGE-TRANSFER SENSITIZERS (X = CL-, BR-, I-, CN-, AND SCN-) ON NANOCRYSTALLINE TIO2 ELECTRODES [J].

NAZEERUDDIN, MK ;

KAY, A ;

RODICIO, I ;

HUMPHRYBAKER, R ;

MULLER, E ;

LISKA, P ;

VLACHOPOULOS, N ;

GRATZEL, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (14) :6382-6390

[9] Redox regulation in ruthenium(II) polypyridyl complexes and their application in solar energy conversion [J].

Nazeeruddin, MK ;

Muller, E ;

Humphry-Baker, R ;

Vlachopoulos, N ;

Gratzel, M .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1997, (23) :4571-4578

[10] A LOW-COST, HIGH-EFFICIENCY SOLAR-CELL BASED ON DYE-SENSITIZED COLLOIDAL TIO2 FILMS [J].

OREGAN, B ;

GRATZEL, M .

NATURE, 1991, 353 (6346) :737-740

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