Electron transfer at molecule-metal interfaces: A two-photon photoemission study

被引：90
作者：
Zhu, XY [1 ]
机构：
[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA
来源：
ANNUAL REVIEW OF PHYSICAL CHEMISTRY | 2002年 / 53卷
关键词：
anionic resonance; molecular electronics; interfacial electron transfer; organic semiconductor; unoccupied states;
D O I：
10.1146/annurev.physchem.53.082801.093725
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：
Electron transfer between a molecular resonance and a metal surface is a ubiquitous process in many chemical disciplines, ranging from molecular electronics to surface photochemistry. This problem has been probed recently by two-photon photoemission spectroscopy. The first photon excites an electron from an occupied metal state to an unoccupied molecular resonance. Subsequent evolution of the excited electronic wavefunction is probed in energy, momentum, and time domains by the absorption of a second photon, which ionizes the electron for detection. These experiments reveal the important roles of molecule-metal wavefunction mixing, intermolecular band formation, polarization, and localization in interfacial electron transfer.
引用
收藏
页码：221 / 247
页数：27
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