Graphene-P(VDF-TrFE) multilayer film for flexible applications

ACS Nano. 2013 Apr 23;7(4):3130-8. doi: 10.1021/nn400848j. Epub 2013 Mar 7.

Abstract

A flexible, transparent acoustic actuator and nanogenerator based on graphene/P(VDF-TrFE)/graphene multilayer film is demonstrated. P(VDF-TrFE) is used as an effective doping layer for graphene and contributes significantly to decreasing the sheet resistance of graphene to 188 ohm/sq. The potentiality of graphene/P(VDF-TrFE)/graphene multilayer film is realized in fabricating transparent, flexible acoustic devices and nanogenerators to represent its functionality. The acoustic actuator shows good performance and sensitivity over a broad range of frequency. The output voltage and the current density of the nanogenerator are estimated to be ∼3 V and ∼0.37 μAcm(-2), respectively, upon the application of pressure. These values are comparable to those reported earlier for ZnO- and PZT-based nanogenerators. Finally, the possibility of rollable devices based on graphene/P(VDF-TrFE)/graphene structure is also demonstrated under a dynamic mechanical loading condition.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acoustics / instrumentation*
  • Elastic Modulus
  • Equipment Design
  • Equipment Failure Analysis
  • Graphite / chemistry*
  • Materials Testing
  • Membranes, Artificial*
  • Micro-Electrical-Mechanical Systems / instrumentation*
  • Nanostructures / chemistry*
  • Nanostructures / ultrastructure
  • Particle Size
  • Polyvinyls / chemistry*
  • Stress, Mechanical

Substances

  • Membranes, Artificial
  • Polyvinyls
  • vinylidene fluoride-trifluoroethylene copolymer
  • Graphite