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Investigation of the Layer-by-Layer Assembly of Colloid Crystals on a Templated Substrate

Published online by Cambridge University Press:  15 March 2011

Sonia Grego ,
Thomas Jarvis ,
Brian Stoner  and
Jay Lewis
Sonia Grego
Affiliation:
MCNC Research & Development Institute 3021 Cornwallis Road Research Triangle Park, NC 27709, U.S.A.
Thomas Jarvis
Affiliation:
MCNC Research & Development Institute 3021 Cornwallis Road Research Triangle Park, NC 27709, U.S.A.
Brian Stoner
Affiliation:
MCNC Research & Development Institute 3021 Cornwallis Road Research Triangle Park, NC 27709, U.S.A.
Jay Lewis
Affiliation:
MCNC Research & Development Institute 3021 Cornwallis Road Research Triangle Park, NC 27709, U.S.A.
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Abstract

We investigated the fabrication of a 3D colloid crystal assembled in a layer-by-layer fashion on a template substrate. This method of assembling an ordered structure offers flexibility in the choice of crystal orientation, because of the template, and the capability to insert a “defect” layer to introduce defect modes in the stop bands of the crystal. The assembly of layers of 4.4 νm polystyrene microspheres on the patterned (100) substrates was studied using a combination of evaporation and chemical binding. It was observed that the ordering process depends on the physical parameters of the template such as well size and depth. A good adhesion of the beads to the template required chemical functionalization of the substrate.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 820: Symposia O/R – Nanoengineered Assemblies and Advanced Micro/Nanosystems , 2004 , R5.4
Copyright
Copyright © Materials Research Society 2004

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