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Proceedings Paper

Compliant composite electrodes and large strain bistable actuation
Author(s): Sungryul Yun; Zhibin Yu; Xiaofan Niu; Weili Hu; Lu Li; Paul Brochu; Qibing Pei
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Paper Abstract

Dielectric elastomer actuators (DEA) and bistable electroactive polymers (BSEP) both require compliant electrodes with rubbery elasticity and high conductivity at large strains. Stretchable opto-electronic devices additionally require the compliant electrodes to be optically transparent. Many candidate materials have been investigated. We report a new approach to mechanically robust, stretchable compliant electrodes. A facile in-situ composite synthesis and transfer technique is employed, and the resulting composite electrodes retain the high surface conductivity of the original conductive network formed by nanowires or nanotubes, while exhibiting the mechanical flexibility of the matrix polymer. The composite electrodes have high transparency and low surface roughness useful for the fabrication of polymer thinfilm electronic devices. The new electrodes are suitable for high-strain actuation, as a complaint resistive heating element to administer the temperature of shape memory polymers, and as the charge injection electrodes for flexible/stretchable polymer light emitting diodes. Bistable electroactive polymers employing the composite electrodes can be actuated to large strains via heating-actuation-cooling cycles.

Paper Details

Date Published: 3 April 2012
PDF: 11 pages
Proc. SPIE 8340, Electroactive Polymer Actuators and Devices (EAPAD) 2012, 834012 (3 April 2012); doi: 10.1117/12.915518
Show Author Affiliations
Sungryul Yun, Univ. of California, Los Angeles (United States)
Zhibin Yu, Univ. of California, Los Angeles (United States)
Xiaofan Niu, Univ. of California, Los Angeles (United States)
Weili Hu, Univ. of California, Los Angeles (United States)
Lu Li, Univ. of California, Los Angeles (United States)
Paul Brochu, Univ. of California, Los Angeles (United States)
Qibing Pei, Univ. of California, Los Angeles (United States)


Published in SPIE Proceedings Vol. 8340:
Electroactive Polymer Actuators and Devices (EAPAD) 2012
Yoseph Bar-Cohen, Editor(s)

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