Solvent effect on the formation of self-assembled monolayer on DLC surface between n-hexane and Vertrel XF
Solvent effect on the formation of self-assembled monolayer on DLC surface between n-hexane and Vertrel XF
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DOI：
10.1016/j.apsusc.2008.03.174
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发表时间：
2008-08-15
影响因子：
6.7
通讯作者：
Han, Jiecai
中科院分区：
文献类型：
--
作者：
Tan, Manlin;Zhang, Huayu;Han, Jiecai
用正己烷和Vertrel XF两种溶剂在类金刚石（DLC）膜磁头表面沉积了1H，1H，2 H，2 H-全氟癸基三氯硅烷（FDTS）自组装膜。为了研究溶剂对单分子膜形成的影响，通过改变溶液浓度制备了一系列FDTS单分子膜，分别通过飞行时间质谱、接触角测量和原子力显微镜对其进行了表征。结果表明，使用正己烷溶剂的FDTS单层存在高密度的聚集体，而使用Vertrel XF溶剂在DLC表面上形成的单层表现出优异的质量和再现性，并且没有观察到聚集体。(c)2008年由Elsevier B. V.出版。
Self-assembled monolayers of 1H,1H,2H,2H-per fluorodecyltrichloro-silane (FDTS) have been deposited on the diamond-like carbon (DLC) film-coated magnetic heads with two different solvents, n-hexane and Vertrel XF. In order to investigate the solvent effect on the monolayer formation, a series of FDTS monolayers were prepared by varying the solution concentrations which were respectively characterized by time-of-flight mass spectroscopy, contact angle measurements and atomic force microscopy. Results showed that high density of aggregations were present for the FDTS monolayers using the n-hexane solvent, while the monolayer formed on the DLC surface using the Vertrel XF solvent exhibited excellent quality and reproducibility and no aggregations were observed. (c) 2008 Published by Elsevier B.V.