Open Access Nano Express

Interfacial polygonal patterning via surfactant-mediated self-assembly of gold nanoparticles

Yu Xin Zhang12*, Xiao Dong Hao1, Min Kuang1 and Ru De Chen3

Author Affiliations

1 College of Materials Science and Engineering, Chongqing University, Chongqing 400044, People’s Republic of China

2 National Key Laboratory of Fundamental Science of Micro/Nano-Devices and System Technology, Chongqing University, Chongqing 400044, People’s Republic of China

3 Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore

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Nanoscale Research Letters 2013, 8:436  doi:10.1186/1556-276X-8-436

Published: 22 October 2013

Abstract

In this work, we explored the formation processes of interfacial polygonal patterning via surfactant-mediated self-assembly of gold nanoparticles (AuNPs). We found that a balance between DDT-capped AuNPs and PVP-passivated AuNPs is a key to making these inorganic–organic thin films. The interfacial polygonal patterning possesses many processing advantages and flexibilities, such as controllable interfacial shape and inter-AuNP distance, tuning of particle sizes, thiol population, chain lengths, and other new properties by introducing functional groups to thiol chains. In principle, self-assembly of AuNPs via well-designed interfaces may be useful for fabrications of other complex architectures.

Keywords:
Nanoparticles; Interfaces; Thin films; Hybrid; Self-assembly; Polygonal pattern