Measurement of temperature-independent femtosecond interfacial electron transfer from an anchored molecular electron donor to a semiconductor as acceptor

被引：224
|
作者：
Burfeindt, B
Hannappel, T
Storck, W
Willig, F
机构：
[1] MAX PLANCK GESELL,FRITZ HABER INST,DEPT PC,D-14195 BERLIN,GERMANY
[2] HAHN MEITNER INST BERLIN GMBH,DEPT CD,D-14109 BERLIN,GERMANY
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1996年 / 100卷 / 41期
关键词：
D O I：
10.1021/jp9622905
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：
Modified perylene chromophores were adsorbed with virtually constant reaction distance on the surface of a spongelike TiO2 electrode. Interfacial electron transfer was probed with femtosecond resolution in ultrahigh vacuum via transient absorption and fluorescence up-conversion measurements. Identical time constants were measured for the decay of the reactant and rise of the product states. The dominant fast time constant was 190 fs. It remained constant between 300 and 22 K.
引用
收藏
页码：16463 / 16465
页数：3
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