4.3 Article

Spin-coated ultrathin poly(vinylidene fluoride-co-trifluoroethylene) films for flexible and transparent electronics

Journal

JOURNAL OF MATERIALS CHEMISTRY
Volume 21, Issue 13, Pages 5057-5061

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm03533e

Keywords

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Funding

  1. Ministry of Education, Science and Technology (MEST) [2009-0082298, 2010-0015063]
  2. Ministry of Knowledge Economy, Korea [20103020060010]
  3. office of KAIST EEWS Initiative [EEWS-2009-1090048]
  4. Brain Korea 21 project

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We demonstrate spin-cast ultrathin poly(vinylidene fluoride-co-trifluoroethylene), P(VDF-TrFE), films on flexible and transparent substrates. Importantly, the PEDOT:PSS electrode allowed for the superior piezoresponse value (17.14 +/- 2.37 pm V-1) and the low coercive voltage (1.76 +/- 0.79 V) of the 20 nm thick P(VDF-TrFE) films. The use of PEDOT: PSS allows for the coherent interface between PEDOT: PSS and P(VDF-TrFE), the strong adhesion at the interface and no interfacial interaction when compared to that of indium-tin oxide (ITO).

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