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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Adhesion behaviour of self-assembled alkanethiol monolayers on silver at different stages of growth
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Adhesion behaviour of self-assembled alkanethiol monolayers on silver at different stages of growth

机译:自组装烷硫醇单分子层在不同生长阶段对银的粘附行为

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摘要

We studied the development of interfacial energy gamma of alkanethiol self- assembled monolayers on Ag/mica substrates by force-displacement spectroscopy using an atomic force microscope. Self-assembled monolayers of decanethiol [CH3 (CH2)(9)SH] and octadecanethiol [CH3 (CH2) 17SH] were studied. The growth of the monolayer as a function of time was studied by an ellipsometer for three different concentrations of decanethiol and octadecanethiol. The thiols led to well-ordered self- assembled monolayer that showed atomic resolution images by lateral force microscopy mode. The behaviour of. showed non-monotonic variation in stages of adsorption, which was more prominent for short chain length decanethiol. The. reached a limiting value of 12 mJ m(-2) for decanethiol and 7 mJ m(-2) for octadecanethiol.
机译:我们通过使用原子力显微镜的力-位移光谱研究了链烷硫醇自组装单层在Ag /云母基底上的界面能γ的发展。研究了癸烷硫醇[CH3(CH2)(9)SH]和十八烷硫醇[CH3(CH2)17SH]的自组装单层。对于三个不同浓度的癸烷硫醇和十八烷硫醇,通过椭偏仪研究了单层生长随时间的变化。硫醇导致排列整齐的自组装单分子层,该单分子层通过侧向力显微镜模式显示了原子分辨率的图像。的行为。在吸附阶段表现出非单调变化,这对于短链长癸硫醇更为突出。的。癸烷硫醇的极限值达到12 mJ m(-2),十八烷硫醇的极限值达到7 mJ m(-2)。

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