Liquid-bridging in particle self-assemblies toward constructing periodic nano-mesh structures and nano-dot arrays

Seung Chul Park, In Ho Lee, Jun Hee Na, Sin Doo Lee

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1 Scopus citations

Abstract

We demonstrate a simple generic principle of constructing periodic nano-mesh structures and nano-dot arrays by liquid-bridging in particle self-assemblies. A self-assembly of nano- to micro-sized spheres of polystyrene, produced in a close-packed monolayer on a substrate by a convective method, is used as a template for liquid-bridging of a functional fluid in the pores among the neighboring particles. After the solidification of the fluid, followed by the detachment of the particles from the substrate, a periodic mesh structure is directly obtained. Moreover, deposition of a desired substance onto such mesh structure made of a sacrificial material, which is subsequently removable through a lift-off process, enables to produce a periodic dot array of the substance. Depending on the size of the particle and the nature of liquid bridging in the particle assembly, a variety of nano-mesh structures of silver-ink and nano-dot arrays of gold are constructed. This simple liquid bridging-based methodology is easily applicable for different classes of functional fluids such as soluble organic semiconductors.

Original languageEnglish (US)
Article number154302
JournalJournal of Applied Physics
Volume114
Issue number15
DOIs
StatePublished - Oct 21 2013

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea grant funded by the Korea government (MEST No. 2011-0028422).

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