Tailoring the Wetting Properties of Surface-Modified Nanostructured Gold Films

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• 作者：Jianzhong Zhu ; Giovanni Zangari ; Michael L. Reed
• 刊名：Journal of Physical Chemistry C
• 出版年：2011
• 出版时间：September 1, 2011
• 年：2011
• 卷：115
• 期：34
• 页码：17097-17101
• 全文大小：881K
• 年卷期：v.115,no.34(September 1, 2011)
• ISSN：1932-7455

文摘

Nanostructured gold films with a dendritic morphology were synthesized by electrodeposition on porous Si surfaces. The films were modified by methyl-terminated self-assembled monolayers, resulting in the formation of superhydrophobic surfaces with a contact angle near to 180掳 and undetectable hysteresis. Gradual smoothening of the dendritic features of the Au surfaces could be achieved by argon ion etching, resulting in a continuously tunable wetting angle. Below a contact angle of 150掳, these surfaces showed increased adhesion and significant contact-angle hysteresis.