Thickness dependence of curvature, strain, and response time in ionic electroactive polymer actuators fabricated via layer-by-layer assembly

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dc.contributorVirginia Tech. Department of Materials Science and Engineeringen
dc.contributorVirginia Tech. Physics Departmenten
dc.contributorPenn State. Department of Electrical Engineeringen
dc.contributor.authorMontazami, Rezaen
dc.contributor.authorLiu, Shengen
dc.contributor.authorLiu, Yangen
dc.contributor.authorWang, Dongen
dc.contributor.authorZhang, Qimingen
dc.contributor.authorHeflin, James R.en
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.date.accessed2015-04-24en
dc.date.accessioned2015-05-21T19:47:21Zen
dc.date.available2015-05-21T19:47:21Zen
dc.date.issued2011-05-15en
dc.description.abstractIonic electroactive polymer (IEAP) actuators containing porous conductive network composites (CNCs) and ionic liquids can result in high strain and fast response times. Incorporation of spherical gold nanoparticles in the CNC enhances conductivity and porosity, while maintaining relatively small thickness. This leads to improved mechanical strain and bending curvature of the actuators. We have employed the layer-by-layer self-assembly technique to fabricate a CNC with enhanced curvature (0.43 mm(-1)) and large net intrinsic strain (6.1%). The results demonstrate that curvature and net strain of IEAP actuators due to motion of the anions increase linearly with the thickness of the CNC as a result of the increased volume in which the anions can be stored. In addition, after subtracting the curvature of a bare Nafion actuator without a CNC, it is found that the net intrinsic strain of the CNC layer is independent of thickness for the range of 20-80 nm, indicating that the entire CNC volume contributes equivalently to the actuator motion. Furthermore, the response time of the actuator due to anion motion is independent of CNC thickness, suggesting that traversal through the Nafion membrane is the limiting factor in the anion motion. (C) 2011 American Institute of Physics. [doi:10.1063/1.3590166]en
dc.description.sponsorshipUnited States. Army Research Office - Grant No. W911NF-07-1-0452 Ionic Liquids in Electro-Active Devices (ILEAD) MURIen
dc.format.extent6 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMontazami, Reza, Liu, Sheng, Liu, Yang, Wang, Dong, Zhang, Qiming, Heflin, James R. (2011). Thickness dependence of curvature, strain, and response time in ionic electroactive polymer actuators fabricated via layer-by-layer assembly. Journal of Applied Physics, 109(10). doi: 10.1063/1.3590166en
dc.identifier.doihttps://doi.org/10.1063/1.3590166en
dc.identifier.issn0021-8979en
dc.identifier.urihttp://hdl.handle.net/10919/52407en
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/jap/109/10/10.1063/1.3590166en
dc.language.isoen_USen
dc.publisherAmerican Institute of Physicsen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectElastic modulien
dc.subjectElectrodesen
dc.subjectIonic liquidsen
dc.subjectElectrolytesen
dc.subjectElectropolymersen
dc.titleThickness dependence of curvature, strain, and response time in ionic electroactive polymer actuators fabricated via layer-by-layer assemblyen
dc.title.serialJournal of Applied Physicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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