skip to main content

Title: Ceramic-polymer nanocomposites with increased dielectric permittivity and low dielectric loss

The use of lead free materials in device fabrication is very essential from environmental point of view. We have synthesized the lead free ferroelectric polymer nanocomposite films with increased dielectric properties. Lead free bismuth titanate has been used as active ceramic nanofillers having crystallite size 24nm and PVDF as the polymer matrix. Ferroelectric β-phase of the polymer composite films was confirmed by X-ray diffraction pattern. Mapping data confirms the homogeneous dispersion of ceramic particles into the polymer matrix. Frequency dependent dielectric constant increases up to 43.4 at 100Hz, whereas dielectric loss decreases with 7 wt% bismuth titanate loading. This high dielectric constant lead free ferroelectric polymer films can be used for energy density applications.
Authors:
;  [1] ;  [2] ;  [3] ;  [1] ;  [4]
  1. Centre for Materials Science and Engineering, National Institute of Technology, Hamirpur -177 005 (India)
  2. School of Physics and Materials Science, Thapar University, Patiala -147 004 (India)
  3. Centre for Energy and Environment, National Institute of Technology, Hamirpur -177005 (India)
  4. (India)
Publication Date:
OSTI Identifier:
22269453
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; BISMUTH; CERAMICS; COMPOSITE MATERIALS; ENERGY DENSITY; FABRICATION; FERROELECTRIC MATERIALS; FILMS; FREQUENCY DEPENDENCE; NANOSTRUCTURES; ORGANIC FLUORINE COMPOUNDS; PERMITTIVITY; POLYVINYLS; TITANATES; X-RAY DIFFRACTION