2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Three-dimensional (3D) Conducting Polymer Structures with High Aspect Ratio Fabricated by Localized Electrochemical Deposition (LECD)

S.K. Seol, J.T. Kim, J.H. Je, Y. Hwu and G. Margaritondo
POSTECH, KR

Keywords:
conducting polymer, polypyrrole, high-aspect-ratio structure, LECD, real-time X-ray microradiography

Abstract:
We present a novel strategy that for the first time produces three-dimensional (3D) PPy structures with high aspect ratios (HAR) via template free localized electrochemical deposition (LECD). This strategy, based on the accurate control of the moving electrode, consists in inducing the homogeneous generation of radicals on the grown structure during deposition. This enabled us to fabricate HAR (over 50:1) structures with different geometries -- from simple straight lines to structures with complex features. The practical cases presented here are of course only a few of the many different examples of conducting polymer HAR micro and nanostructures that our novel LECD approach can fabricate by appropriate tuning of the growth parameters.

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