Micropattern of Colloidal Crystal by Using Electrophoretic Deposition Process with Three-Electrode System

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A novel micropatterning process for a particle assembly has been performed by using an electrophoretic deposition (EPD) method with a local electric field in a colloidal suspension generated by a three-electrode system. Monodisperse silica colloidal spheres with a diameter of 300 nm were used to fabricate micropattern of colloidal crystal. An interdigitated gold-microarray electrode with a 10 μm of width and a gold plate electrode were used as the working and the counter electrodes, respectively. After optimization of the EPD processing parameters, a micropattern was constructed from silica colloidal spheres. It had a relatively close-packed structure formed onto the interdigitated microarray electrode. This micropattern showed a characteristic optical reflectance peak due to Bragg’s law.

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Periodical:

Edited by:

Keiichi Katayama, Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki

Pages:

171-174

DOI:

10.4028/www.scientific.net/KEM.320.171

Citation:

J. I. Hamagami et al., "Micropattern of Colloidal Crystal by Using Electrophoretic Deposition Process with Three-Electrode System ", Key Engineering Materials, Vol. 320, pp. 171-174, 2006

Online since:

September 2006

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$35.00

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DOI: 10.4028/0-87849-982-2.243

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