Surface molecular structure of self-assembled alkanethiols evidenced by UPS and photoemission with synchrotron radiation

被引：54

作者：

Duwez, AS ^{[1
]}

DiPaolo, S ^{[1
]}

Ghijsen, J ^{[1
]}

Riga, J ^{[1
]}

Deleuze, M ^{[1
]}

Delhalle, J ^{[1
]}

机构：

[1] FAC UNIV NOTRE DAME PAIX,LAB CHIM THEOR APPL,B-5000 NAMUR,BELGIUM

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1997年 / 101卷 / 06期

关键词：

D O I：

10.1021/jp962954a

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：

With the aim of investigating the configurational and conformational characteristics of monolayers of alkanethiols on gold by means of a photoemission experiment, we compare the valence data obtained from these layers using synchrotron radiation and ultraviolet photoemission spectroscopy (UPS). The incident energy used for synchrotron radiation has been chosen very close to the Cooper minimum of the 5d levels of gold, in order to limit as much as possible interference from the substrate. The recorded spectra differ markedly from one sample to another, notwithstanding their closely related chemical nature. These variations are compared consistently with semiquantitative simulations on model clusters and found thereby to reflect specifically the influence of the connectivity and of specific interactions on the electronic structure of long hydrocarbon chains.

引用

页码：884 / 890

页数：7

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