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Title: Microscopically crumpled indium-tin-oxide thin films as compliant electrodes with tunable transmittance
Authors: Ong, Hui-Yng
Shrestha, Milan
Lau, Gih-Keong
Issue Date: 2015
Source: Ong, H.-Y., Shrestha, M., & Lau, G.-K. (2015). Microscopically crumpled indium-tin-oxide thin films as compliant electrodes with tunable transmittance. Applied Physics Letters, 107(13), 132902-.
Series/Report no.: Applied Physics Letters
Abstract: Indium-tin-oxide (ITO) thin films are perceived to be stiff and brittle. This letter reports that crumpled ITO thin films on adhesive poly-acrylate dielectric elastomer can make compliant electrodes, sustaining compression of up to 25% × 25% equi-biaxial strain and unfolding. Its optical transmittance reduces with crumpling, but restored with unfolding. A dielectric elastomer actuator (DEA) using the 14.2% × 14.2% initially crumpled ITO thin-film electrodes is electrically activated to produce a 37% areal strain. Such electric unfolding turns the translucent DEA to be transparent, with transmittance increased from 39.14% to 52.08%. This transmittance tunability promises to make a low-cost smart privacy window.
ISSN: 0003-6951
DOI: 10.1063/1.4932115
Schools: School of Mechanical and Aerospace Engineering 
Rights: © 2015 AIP Publishing LLC. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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