Electrochemical, spectroscopic and SPM evidence for the controlled formation of self-assembled monolayers and organised multilayers of ferrocenyl alkyl thiols on Au(111)

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	Electrochemical, spectroscopic and SPM evidence for the controlled formation of self-assembled monolayers and organised multilayers of ferrocenyl alkyl thiols on Au(111)
	Viana AS; Abrantes LM; Jin G(靳刚); Floate S; Nichols RJ; Kalaji M
刊名	Physical Chemistry Chemical Physics
	2001
卷号	3 期号:16 页码:3411-3419
ISSN号	1463-9076
通讯作者	Kalaji, M (reprint author), Univ Wales Bangor, Dept Chem, Bangor LL57 2UW, Gwynedd, Wales.
中文摘要	Organised multilayers were formed from the controlled self-assembly of ferrocene alkyl thiols on Au(111) surfaces. The control was accomplished by increasing the concentration of the thiol solutions used for the assembly. Cyclic voltammetry, ellipsometry, scanning probe microscopy (STM and AFM) and in situ FTIR spectroscopy were used to probe the differences between mono- and multilayers of the same compounds. Electrochemical desorption studies confirmed that the multilayer structure is attached to the surface via one monolayer. The electrochemical behaviour of the multilayers indicated the presence of more than one controlling factor during the oxidation step, whereas the reduction was kinetically controlled which contrasts with the behaviour of monolayers, which exhibit kinetic control for the oxidation and reduction steps. Conventional and imaging ellipsometry confirmed that multilayers with well-defined increments in thickness could be produced. However, STM indicated that at the monolayer stage, the thiols used promote the mobility of Au atoms on the surface. It is very likely that the multilayer structure is held together through hydrogen bonding. To the best of out knowledge, this is the first example of a controlled one-step growth of multilayers of ferrocenyl alkyl thiols using self-assembly techniques.
学科主题	力学
类目[WOS]	Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]	Chemistry ; Physics
关键词[WOS]	SCANNING-TUNNELING-MICROSCOPY ; GOLD ; ADSORPTION ; ELECTRODES ; SURFACES ; ALKANETHIOLS ; ELLIPSOMETRY ; VOLTAMMETRY ; GOLD(111) ; FILMS
收录类别	SCI
语种	英语
WOS记录号	WOS:000170703000026
公开日期	2007-06-15
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/17100]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Viana AS,Abrantes LM,Jin G,et al. Electrochemical, spectroscopic and SPM evidence for the controlled formation of self-assembled monolayers and organised multilayers of ferrocenyl alkyl thiols on Au(111)[J]. Physical Chemistry Chemical Physics,2001,3(16):3411-3419.
APA	Viana AS,Abrantes LM,靳刚,Floate S,Nichols RJ,&Kalaji M.(2001).Electrochemical, spectroscopic and SPM evidence for the controlled formation of self-assembled monolayers and organised multilayers of ferrocenyl alkyl thiols on Au(111).Physical Chemistry Chemical Physics,3(16),3411-3419.
MLA	Viana AS,et al."Electrochemical, spectroscopic and SPM evidence for the controlled formation of self-assembled monolayers and organised multilayers of ferrocenyl alkyl thiols on Au(111)".Physical Chemistry Chemical Physics 3.16(2001):3411-3419.