Electrically Conductive PEDOT Coating with Self-Healing Superhydrophobicity
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- 作者：Dandan Zhu ; Xuemin Lu ; Qinghua Lu
- 刊名：Langmuir
- 出版年：2014
- 出版时间：April 29, 2014
- 年：2014
- 卷：30
- 期：16
- 页码：4671-4677
- 全文大小：355K
- 年卷期：v.30,no.16(April 29, 2014)
- ISSN：1520-5827
文摘
A self-healing electrically conductive superhydrophobic poly(3,4-ethylenedioxythiophene) (PEDOT) coating has been prepared by chemical vapor deposition of a fluoroalkylsilane (POTS) onto a PEDOT film, which was obtained by electrochemical deposition. The coating not only maintained high conductivity with a low resistivity of 3.2 脳 10鈥? 惟路m, but also displayed a water contact angle larger than 156掳 and a sliding angle smaller than 10掳. After being etched with O2 plasma, the coating showed an excellent self-healing ability, spontaneously regaining its superhydrophobicity when left under ambient conditions for 20 h. This superhydrophobicity recovery process was found to be humidity-dependent, and could be accelerated and completed within 2 h under a high humidity of 84%. The coating also exhibited good superhydrophobicity recovering ability after being corroded by strong acid solution at pH 1 or strong base solution at pH 14 for 3 h.