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Open optoelectrowetting droplet actuation
Birck and NCN Publications
  • Han-Sheng Chuang, Purdue University
  • Aloke Kumar, Purdue University
  • Steven Wereley, Birck Nanotechnology Center, Purdue University
Abstract

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. (C) 2008 American Institute of Physics.

Date of this Version
8-11-2008
Citation
APPLIED PHYSICS LETTERS 93, 064104
Citation Information
Han-Sheng Chuang, Aloke Kumar and Steven Wereley. "Open optoelectrowetting droplet actuation" (2008)
Available at: http://works.bepress.com/aloke_kumar/8/