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Browse Journals & Magazines > Applied Physics Letters ...> Volume:93 Issue:6 Help

Open optoelectrowetting droplet actuation

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3 Author(s)
Chuang, Han-Sheng ; Birck Nanotechnology Center and School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, USA ; Kumar, Aloke ; Wereley, Steven T.

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2970047 

We present experimental realization of an open optoelectrowetting (o-OEW) device for liquid droplet manipulations. The o-OEW device is realized by coplanar electrodes and a photoconductor. The local switching effect for electrowetting resulting from illumination is based on the tunable impedance of the photoconductor. Dynamic virtual electrodes are created using projected images, leading to free planar movements of droplets. Basic operations such as transporting and merging were demonstrated. Translational speed up to 3.6 mm/s was measured. Equivalent circuit analysis shows that the operational frequency for the current setup ranges from 100 to 800 Hz.

Published in:
Applied Physics Letters  (Volume:93 ,  Issue: 6 )

Date of Publication: Aug 2008

Page(s):
064104 - 064104-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2970047
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Aug 2008

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