The excitation wavelength and solvent dependance of the kinetics of electron injection in Ru(dcbpy)2(NCS)2 sensitized nanocrystalline TiO2 films

被引：40

作者：

Durrant, JR ^{[1
]}

Tachibana, Y

Mercer, I

Moser, JE

Grätzel, M

Klug, DR

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Biochem, Ctr Photomol Sci, London SW7 2AY, England

[2] Ecole Polytech Fed Lausanne, Inst Chim Phys, CH-1015 Lausanne, Switzerland

来源：

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 1999年 / 212卷

关键词：

electron transfer; dye sensitisation; nanocrystalline; solar cells; interfacial electron transfer;

D O I：

10.1524/zpch.1999.212.Part_1.093

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：

Ultrafast transient absorption spectroscopy has been employed to monitor the kinetics of photoinduced electron injection from Ru(2,2-bipyridyl-4,4'-dicarboxylate),(NCS), (Ru(dcbpy)(2)(NCS)(2)) into nanocrystalline TiO2 films. This process found to exhibit nonexponential kinetics on the femtosecond/picosecond timescales. A multiexponential analysis yielded lifetimes of <100 fs, 1.3 ps and 13 ps with relative amplitudes of 0.35, 0.22, 0.43 (+/-0.06) respectively. These kinetics were found to be independent of excitation wavelength, and to whether the film was immersed in organic solvent or exposed to air.

引用

页码：93 / 98

页数：6

共 11 条

[1] Measurement of temperature-independent femtosecond interfacial electron transfer from an anchored molecular electron donor to a semiconductor as acceptor
Burfeindt, B
Hannappel, T
Storck, W
Willig, F
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (41) : 16463 - 16465
[2] ELLINGSON RJ, 1998, IN PRESS J PHYS CH B
[3] Measurement of ultrafast photoinduced electron transfer from chemically anchored Ru-dye molecules into empty electronic states in a colloidal anatase TiO2 film
Hannappel, T
Burfeindt, B
Storck, W
Willig, F
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (35): : 6799 - 6802
[4] Charge recombination kinetics in dye-sensitized nanocrystalline titanium dioxide films under externally applied bias
Haque, SA
Tachibana, Y
Klug, DR
Durrant, JR
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (10): : 1745 - 1749
[5] Luminescence of charge transfer sensitizers anchored to metal oxide nanoparticles
Heimer, TA
Meyer, GJ
[J]. JOURNAL OF LUMINESCENCE, 1996, 70 : 468 - 478
[6] HIGENDORFF M, 1998, CHEM PHYS LETT, V287, P709
[7] Comment on "measurement of ultrafast photoinduced electron transfer from chemically anchored Ru-dye molecules into empty electronic states in a colloidal anatase TiO2 film"
Moser, JE
Noukakis, D
Bach, U
Tachibana, Y
Klug, DR
Durrant, JR
Humphry-Baker, R
Grätzel, M
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (18): : 3649 - 3650
[8] A LOW-COST, HIGH-EFFICIENCY SOLAR-CELL BASED ON DYE-SENSITIZED COLLOIDAL TIO2 FILMS
OREGAN, B
GRATZEL, M
[J]. NATURE, 1991, 353 (6346) : 737 - 740
[9] REHM JM, 1996, J PHYS CHEM, V100, P2820
[10] Absorption and electrochemical properties of ruthenium(II) dyes, studied by semiempirical quantum chemical calculations
Rensmo, H
Lunell, S
Siegbahn, H
[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1998, 114 (02) : 117 - 124

← 1 2 →