Preparation of arrays of isolated spherical cavities by self-assembly of polystyrene spheres on self-assembled pre-patterned macroporous films


Abdelsalam, M.E., Bartlett, P.N., Baumberg, J.J. and Coyle, S (2004) Preparation of arrays of isolated spherical cavities by self-assembly of polystyrene spheres on self-assembled pre-patterned macroporous films Advanced Materials, 16, (1), pp. 90-93. (doi:10.1002/adma.200306052).

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Description/Abstract

Self-assembly of colloidal spheres onto patterned (e.g., lithographically modified [1]) substrates is a promising approach to prepare complex 3D geometries (e.g., assemble colloidal spheres into square pyramidal shapes[2]) that can not be produced by self-assembly of colloidal spheres on flat substrates. Generally self-assembly alone is restricted to the formation of close-packed 2D and 3D arrays of colloidal particles and does not lead to more complex lattice types and geometries. A certain degree of control over colloidal self-assembly has been achieved through external electric[3] or intense optical fields[4] and by manipulating the interaction potential[5]. Here we demonstrate a simple scheme that combines two self-assembly steps and electrochemical deposition to produce patterns of ordered arrays of spheres with controlled spacing and eventually isolated metallic arrays of spherical cavities.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1002/adma.200306052
ISSNs: 1521-4095 (print)
Keywords: liquid-fluid interface, 2-dimensional arrays, colloidal particles, optical-properties, crystallization, lithography, monolayers, crystals
Subjects:
ePrint ID: 17436
Date :
Date Event
2004Published
Date Deposited: 19 Sep 2005
Last Modified: 16 Apr 2017 23:15
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/17436

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