Femtosecond lifetime investigations of excited adsorbate states: Atomic oxygen on Cu(111)

被引：21

作者：

Bauer, M

Pawlik, S

Aeschlimann, M

机构：

[1] Laboratory for Technical Chemistry, ETH Zurich

来源：

SURFACE SCIENCE | 1997年 / 377卷 / 1-3期

关键词：

alkali metals; copper; low index single crystal surfaces; metallic surfaces; oxygen; photochemistry; visible and ultraviolet photelectron spectroscopy;

D O I：

10.1016/S0039-6028(96)01415-X

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：

We investigated an excited electronic state induced by atomic oxygen adsorbed on Cu(lll) by means of time-resolved two-photon photoemission spectroscopy. In contrast to a system investigated previously, cesium adsorbed on Cu(lll), no increase in the relaxation time of the photoexcited electrons due to the resonance time of the excited oxygen state was detected within our time resolution. The difference between the two systems will be discussed, taking the specific adsorption sites of the adsorbates on the Cu(lll)surface into consideration.

引用

页码：350 / 354

页数：5

共 20 条

[1] Competing nonradiative channels for hot electron induced surface photochemistry [J].