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Open AccessArticle

A Novel Ionic Polymer Metal ZnO Composite (IPMZC)

by Sang-Mun Kim 1,†, Rashi Tiwari 2,† and Kwang J. Kim 1,*
Active Materials and Processing Laboratory, Department of Mechanical Engineering, University of Nevada, Reno, NV 89557, USA
Mechanical and Aerospace Engineering Department, Cornell University, Ithaca, NY 14853, USA
Author to whom correspondence should be addressed.
These authors equally contributed to this work.
Sensors 2011, 11(5), 4674-4687;
Received: 1 February 2011 / Revised: 6 April 2011 / Accepted: 26 April 2011 / Published: 28 April 2011
(This article belongs to the Section Chemical Sensors)
The presented research introduces a new Ionic Polymer-Metal-ZnO Composite (IPMZC) demonstrating photoluminescence (PL)-quenching on mechanical bending or application of an electric field. The newly fabricated IPMZC integrates the optical properties of ZnO and the electroactive nature of Ionic Polymer Metal Composites (IPMC) to enable a non-contact read-out of IPMC response. The electro-mechano-optical response of the IPMZC was measured by observing the PL spectra under mechanical bending and electrical regimes. The working range was measured to be 375–475 nm. It was noted that the PL-quenching increased proportionally with the increase in curvature and applied field at 384 and 468 nm. The maximum quenching of 53.4% was achieved with the membrane curvature of 78.74/m and 3.01% when electric field (12.5 × 103 V/m) is applied. Coating IPMC with crystalline ZnO was observed to improve IPMC transduction. View Full-Text
Keywords: ionic polymer; sensor; photo-luminescence; quenching ionic polymer; sensor; photo-luminescence; quenching
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MDPI and ACS Style

Kim, S.-M.; Tiwari, R.; Kim, K.J. A Novel Ionic Polymer Metal ZnO Composite (IPMZC). Sensors 2011, 11, 4674-4687.

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