Open AccessPyroelectric Properties of PVDF:MWCNT Nanocomposite Film for Uncooled Infrared Detectors
Author(s) -
Matthew Edwards,
Ashok K. Batra,
Ashwith Chilvery,
Padmaja Guggilla,
Michael J. Curley,
Mohan D. Aggarwal
Publication year - 2012
Publication title -
materials sciences and applications
Language(s) - English
Resource type - Journals
eISSN - 2153-1188
pISSN - 2153-117X
DOI - 10.4236/msa.2012.312124
Subject(s) - materials science , polyvinylidene fluoride , pyroelectricity , nanocomposite , figure of merit , carbon nanotube , dielectric , composite material , composite number , infrared , infrared detector , casting , optoelectronics , polymer , optics , ferroelectricity , physics
Pyroelectric multi-walled carbon nanotubes:polyvinylidene fluoride (PVDF:MWCT) composite films have been fabriccated by the solution casting technique. The pyroelectric and dielectric properties of the composite films were examined for their use in uncooled infrared detectors. The properties measured include: 1) dielectric constants and 2) pyroelec- tric coefficient as a function of temperature. From the foregoing parameters, materials Figures-of-merit, for infrared detection and thermal-vidicons, were calculated. The results indicated Figures-of-merit of composite film were higher than pristine polyvinylidene fluoride films