ADSORBATE EFFECTS ON PHOTOEMISSION FROM AG

被引：25

作者：

KIM, CW ^{[1
]}

VILLAGRAN, JC ^{[1
]}

EVEN, U ^{[1
]}

THOMPSON, JC ^{[1
]}

机构：

[1] TEL AVIV UNIV,IL-69978 TEL AVIV,ISRAEL

来源：

JOURNAL OF CHEMICAL PHYSICS | 1991年 / 94卷 / 05期

关键词：

D O I：

10.1063/1.460674

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 have used pyridine and a number of related molecules to lower the workfunction of thin Ag films so as to compare the effects of various molecular properties on the photoemission process and on surface electronic modes. We find that a nitrogen lone pair electronic orbital is essential for a large threshold shift. Other molecular properties, such as dipole moment and polarizability have a very small effect. The films are rough, therefore we see strong photoyields at the energy of the surface plasma mode, 3.6 eV. There is also a peak in the photoyield at 3.85 eV, the energy of the bulk plasmon.

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页码：3974 / 3977

页数：4

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