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

Abstract

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
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 118; Journal Issue: 20; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
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

Citation Formats

C K, Subash, E-mail: cksubash08@gmail.com, Valiyaneerilakkal, Uvais, Varghese, Soney, Singh, Kulwant, and Department of ECE, B.K. Birla Institute of Engineering and Technology, Pilani, Rajasthan 333031. Device level optimization of poly(vinylidene fluoride-trifluoroethylene)–zinc oxide polymer nanocomposite thin films for ferroelectric applications. United States: N. p., 2015. Web. doi:10.1063/1.4936203.
C K, Subash, E-mail: cksubash08@gmail.com, Valiyaneerilakkal, Uvais, Varghese, Soney, Singh, Kulwant, & Department of ECE, B.K. Birla Institute of Engineering and Technology, Pilani, Rajasthan 333031. Device level optimization of poly(vinylidene fluoride-trifluoroethylene)–zinc oxide polymer nanocomposite thin films for ferroelectric applications. United States. doi:10.1063/1.4936203.
C K, Subash, E-mail: cksubash08@gmail.com, Valiyaneerilakkal, Uvais, Varghese, Soney, Singh, Kulwant, and Department of ECE, B.K. Birla Institute of Engineering and Technology, Pilani, Rajasthan 333031. Sat . "Device level optimization of poly(vinylidene fluoride-trifluoroethylene)–zinc oxide polymer nanocomposite thin films for ferroelectric applications". United States. doi:10.1063/1.4936203.
@article{osti_22492968,
title = {Device level optimization of poly(vinylidene fluoride-trifluoroethylene)–zinc oxide polymer nanocomposite thin films for ferroelectric applications},
author = {C K, Subash, E-mail: cksubash08@gmail.com and Valiyaneerilakkal, Uvais and Varghese, Soney and Singh, Kulwant and Department of ECE, B.K. Birla Institute of Engineering and Technology, Pilani, Rajasthan 333031},
abstractNote = {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.},
doi = {10.1063/1.4936203},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 20,
volume = 118,
place = {United States},
year = {2015},
month = {11}
}