Open AccessSTRUCTURE AND ELECTROPHYSICAL PROPERTIES OF PVDF+PbS/CdS NANOCOMPOSITES
Author(s) -
A. A. Novruzova
Publication year - 2021
Publication title -
vestnik nâc rk
Language(s) - English
Resource type - Journals
eISSN - 1729-7885
pISSN - 1729-7516
DOI - 10.52676/1729-7885-2021-2-53-56
Subject(s) - nanocomposite , materials science , dielectric , permittivity , nanoparticle , scanning electron microscope , polymer , dielectric permittivity , composite material , dielectric loss , chemical engineering , nanotechnology , optoelectronics , engineering
In the given paper were investigated structure and electrophysical properties of PVDF+PbS/CdS nanocomposites. Distribution and the size of PbS and CdS nanoparticles in the polymer matrix has been studied by scanning electron microscopy (JEOL JSM-7600 F). The structure of the nanocomposite samples was investigated by the X-ray diffraction spectroscopy. The dependence of dielectric permittivity at frequency and temperature was investigated. It was shown that the dielectric permittivity of PVDF+PbS/CdS nanocomposite samples was increase in small nanoparticles content. Further increase in the concentration of the filler leads to decrease in the dielectric permittivity. The subsequent decrease in dielectric permittivity at higher nanoparticles content can be explained by the increase in defects in the structure of the nanocomposite.