FORMATION OF SELF-ASSEMBLED MONOLAYERS OF N-ALKANETHIOLS ON GOLD - A SCANNING TUNNELING MICROSCOPY STUDY ON THE MODIFICATION OF SUBSTRATE MORPHOLOGY

被引：304

作者：

EDINGER, K ^{[1
]}

GOLZHAUSER, A ^{[1
]}

DEMOTA, K ^{[1
]}

WOLL, C ^{[1
]}

GRUNZE, M ^{[1
]}

机构：

[1] INST ANGEW PHYS CHEM,NEUENHEIMER FELD 253,W-6900 HEIDELBERG,GERMANY

来源：

LANGMUIR | 1993年 / 9卷 / 01期

关键词：

D O I：

10.1021/la00025a002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single-crystal Au(111) surfaces covered with self-assembled monolayers of n-alkanethiols (CH3(CH2)n-1SH) (n = 6, 22) are investigated with scanning tunneling microscopy. After adsorption new morphological features are observed which can be shown to originate from a removal of 30-50% of a monolayer of Au atoms from the surface into the solution. Only a very low concentration of defects within the films (''pinholes'') was observed. In addition experimental evidence for two different tunneling mechanisms in short and long alkyl chains is provided.

引用

页码：4 / 8

页数：5

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