skip to main content

Title: Device level optimization of poly(vinylidene fluoride-trifluoroethylene)–zinc oxide polymer nanocomposite thin films for ferroelectric applications

Polymer nanocomposite was prepared using poly(vinylidene fluoride-trifluoroethylene) and zinc oxide (ZnO) nanopowder, which are ferroelectric in nature. Nanocomposite was prepared in various concentrations(0.2, 0.4, 0.8, and 1 wt. %) using probe ultra-sonication, followed by spin coating and annealing at 120 °C for 2 h to improve the formation of β-phase. Metal-ferroelectric-metal capacitor was fabricated using this optimized thin film as a ferroelectric layer. Device level optimization was carried out by polarization-electric field (P-E) hysteresis studies of this film, which shows polarization enhancement of composite. Various characterization techniques like atomic force microscopy, Fourier transform infra-red spectroscopy (FT-IR), Differential scanning calorimetry, and X-ray diffraction were used to study the β-phase formation of nancomposite. The capacitance–voltage (C-V) and current-voltage (I-V) characteristics were studied through varying frequency and temperature. C-V measurements show an increase of 79% in the capacitance of polymer nanocomposite, which can be used for the fabrication of ferroelectric devices.
Authors:
; ;  [1] ;  [1] ;  [2]
  1. Nanomaterials and Device Research Laboratory, School of Nano Science and Technology, National Institute of Technology Calicut, Calicut, Kerala 673601 (India)
  2. (India)
Publication Date:
OSTI Identifier:
22492968
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 20; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ANNEALING; ATOMIC FORCE MICROSCOPY; CALORIMETRY; CAPACITANCE; ELECTRIC CONDUCTIVITY; ELECTRIC FIELDS; ELECTRIC POTENTIAL; FERROELECTRIC MATERIALS; FLUORINATED ALIPHATIC HYDROCARBONS; FOURIER TRANSFORM SPECTROMETERS; HYSTERESIS; INFRARED SPECTRA; NANOSTRUCTURES; OPTIMIZATION; POLARIZATION; POLYVINYLS; SPIN-ON COATING; THIN FILMS; X-RAY DIFFRACTION; ZINC OXIDES