Low-cost spin-coatable, transferable, and high-κ ion gel dielectric for flexible electrowetting

V. Narasimhan, S. Vijayavenkataraman, S. Y. Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel ion gel material was demonstrated as a highcapacitance dielectric for flexible electrowetting-ondielectric (EWOD) applications. Unlike conventional dielectric materials such as SiCO2 and Al2O3 commonly used for EWOD, an ion gel offers two or three order higher capacitance than them, while being fabricated through a simple low-cost spin-coating process without complex and expensive fabrication setups such as high vaccume facilities. In this paper, a brief introduction into the constituents of the ion gel and its electrical modeling for EWOD are discussed, followed by fabrication methodologies. With the ion gel films consisting of a [P(VDF-HFP)] copolymer and a [EMIM] [TFSI] ionic liquid, we compared EWOD performance of the ion gel samples with other conventional dielectric materials and showed the potential of the ion gel material capable of low-cost, spin-coatable, transferable and high-capacitanec dielectric for flexible EWOD applications.

Original languageEnglish (US)
Title of host publicationNSTI
Subtitle of host publicationAdvanced Manufacturing, Electronics and Microsystems - TechConnect Briefs 2015
EditorsBart Romanowicz, Matthew Laudon
PublisherTaylor and Francis Inc.
Pages363-366
Number of pages4
ISBN (Electronic)9781498747301
StatePublished - 2015
Event10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 18th Annual Nanotech Conference and Expo, and the 2015 National SBIR/STTR Conference - Washington, United States
Duration: Jun 14 2015Jun 17 2015

Publication series

NameNSTI: Advanced Materials - TechConnect Briefs 2015
Volume4

Conference

Conference10th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 18th Annual Nanotech Conference and Expo, and the 2015 National SBIR/STTR Conference
CountryUnited States
CityWashington
Period6/14/156/17/15

Keywords

  • Electrowetting-on-dielectric (EWOD)
  • High-κ dielectric
  • Ion gel

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Fluid Flow and Transfer Processes
  • Biotechnology
  • Fuel Technology

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  • Cite this

    Narasimhan, V., Vijayavenkataraman, S., & Park, S. Y. (2015). Low-cost spin-coatable, transferable, and high-κ ion gel dielectric for flexible electrowetting. In B. Romanowicz, & M. Laudon (Eds.), NSTI: Advanced Manufacturing, Electronics and Microsystems - TechConnect Briefs 2015 (pp. 363-366). (NSTI: Advanced Materials - TechConnect Briefs 2015; Vol. 4). Taylor and Francis Inc..