Dimerization process in alkanethiol self-assembled monolayer on Au(111)

被引：65
|
作者：
Nishida, N [1 ]
Hara, M [1 ]
Sasabe, H [1 ]
Knoll, W [1 ]
机构：
[1] SAITAMA UNIV,GRAD SCH SCI & ENGN,URAWA,SAITAMA 338,JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1996年 / 35卷 / 6B期
关键词：
self-assembled monolayer (SAM); alkanethiol; thermal desorption; dimerization;
D O I：
10.1143/JJAP.35.L799
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Desorption kinetics of alkanethiol self-assembled monolayer (SAM) on an Au(111) surface is studied by thermal desorption spectroscopy (TDS) using a quadrupole mass spectrometer. TDS reveals for the first time that SAM desorbs to form a dimer, dialkyl disulfide molecule from the Au surface with a desorption activation energy of 32 kcal/mol. This result suggests that there exists a dimerization process of SAM molecules on the Au surface, which has been predicted by Fenter et al. [Science 266 (1994) 1216] through diffraction studies.
引用
收藏
页码：L799 / L802
页数：4
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