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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47332

Title: Three-Dimensional (3D) Polypyrrole Microstructures with High Aspect Ratios Fabricated by Localized Electropolymerization
Authors: Seung Kwon Seol
Ji Tae Kim
Jung Ho Je
Yeukuang Hwu
Giorgio Margaritondo
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2008-04
Issue Date: 2018-07-16T05:43:24Z
Publisher: MACROMOLECULES
Abstract: Abstract: We present the three-dimensional (3D) growth of polypyrrole (PPy) microstructures with high aspect ratios (HAR) by a localized electropolymerization. The radicals formed by an oxidation of Py monomer is localized on the targeting area due to a confinement of electric field, forming a PPy structure. We found that a reversal point at which the relative field strengths of Ec (center of the grown structure) and Ee (edge) are reversed is a critical factor in determining the growth characteristic of the 3D PPy structure. A porous structure with open and closed pores is produced below the reversal point by the hydrogen bubble trapping in a gap between the microelectrode and the grown structure. Above the reversal point, a structure with dense and uniform features is obtained by a steady supply of monomer in the gap without bubble trapping.
Relation: 41(9) pp.3071–3074
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47332
Appears in Collections:[光電科學研究所] 期刊論文

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