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Proceedings Paper

Fast switching of conjugated polymer films
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Paper Abstract

It is important to increase the switching speed of conjugated polymers between oxidized and reduced states for a wide range of devices, including capacitors, electrochromic displays, and actuators. In this paper, we compare the in-plane and the out-of- plane ion transport speed during electrochemical reduction of a conjugated polymer, polypyrrole doped with dodecylbenzenesulfonate. Results show that the in-plane ion transport is approximately 50 times faster than out-of-plane transport. The anisotropy is likely induced by the dodecylbenzenesulfonate, which has been shown previously to form layers parallel to the surface. An engineering method is presented to enhance the in-plane ion transport by etching pores into the polymer.

Paper Details

Date Published: 15 March 2006
PDF: 8 pages
Proc. SPIE 6168, Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD), 61680W (15 March 2006); doi: 10.1117/12.658054
Show Author Affiliations
Xuezheng Wang, Univ. of Maryland/College Park (United States)
Elisabeth Smela, Univ. of Maryland/College Park (United States)


Published in SPIE Proceedings Vol. 6168:
Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

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