Influence of an external magnetic field on the formation of self-assembled monolayers of dodecanethiol on polycrystalline gold electrode

被引：6
|
作者：
Cheng, Jiongjia [1 ,2 ]
Dai, Jianyuan [1 ,2 ]
Jin, Jing [1 ,2 ]
Qiu, Li [3 ]
Fang, Guiyin [3 ]
Li, Zhiguo [1 ,2 ]
Sun, Yongbo [1 ,2 ]
Bi, Shuping [1 ,2 ]
机构：
[1] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Key Lab MOE Life Sci, Nanjing 210093, Peoples R China
[3] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
来源：
THIN SOLID FILMS | 2009年 / 517卷 / 13期
基金：
中国国家自然科学基金;
关键词：
Dodecanethiol; Polycrystalline gold electrode; Self-assembled monolayers; Magnetic field; SURFACE; SPECTROSCOPY; PHOSPHATE; DEVICES; PHASE; PH;
D O I：
10.1016/j.tsf.2009.01.039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper reports the preparation of dodecanethiol self-assembled monolayers (C12SH-SAMs) on polycrystalline gold electrodes in a magnetic field. The qualities of C12SH-SAMs were characterized by both cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The results show that highly dense and well-ordered SAMs could form in a relatively short time (3 h), indicating that the rate of SAMs formation increased under an external magnetic field compared with the natural self-assembly process. Moreover, the results of CV and EIS measurements also suggested that the presence of a magnetic field had influenced the qualities of the SAMs; the stronger magnetic intensity can help to obtain much denser and well-ordered SAMs. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：3661 / 3666
页数：6
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