Dielectrophoretic assembly of oriented and switchable two-dimensional photonic crystals

Simon O. Lumsdon, Eric W. Kaler, Jacob P. Williams, Orlin D. Velev

Research output: Contribution to journalArticlepeer-review

123 Scopus citations

Abstract

The assembly of one- and two-dimensional crystals from suspensions of latex or silica microspheres subjected to an alternating electric field in a gap between planar electrodes on a surface is discussed. These crystals having areas above 25 mm2 are oriented without the need for micropatterned templates. The particles are accumulated on the surface between the electrodes due to the field gradients, align into rows along the field direction and are crystallized into hexagonal arrays. The electrostatic repulsion is used to control the lattice spacings.

Original languageEnglish (US)
Pages (from-to)949-951
Number of pages3
JournalApplied Physics Letters
Volume82
Issue number6
DOIs
StatePublished - Feb 10 2003

Bibliographical note

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Fingerprint Dive into the research topics of 'Dielectrophoretic assembly of oriented and switchable two-dimensional photonic crystals'. Together they form a unique fingerprint.

Cite this