Enhanced Dielectric of PVDF-CoFe1.5Cr0.5O4 for Capacitor Application.

The PVDF-CoFe_1.5Cr_0.5O₄ (PVDF-CFCO₅) nanocomposite films are synthesized with different weight % of CoFe_1.5Cr_0.5O₄ as filler in PVDF matrix. X-ray diffraction pattern detected the existence of α and β phases and, also validate the result by Fourier transform infrared microscopy. The inclusion of CFCO5 nanoparticles in the polymer medium initiates the alteration of phase between α and β and, offers the nanocomposites greater mobile charge carriers which contribute in the interfacial polarization. The dielectric properties of PVDF-CFCO5 films have superior dielectric constant and considerably a lesser dissipation factor (tan δ) as compared to pure PVDF as well as pure cobalt ferrite. The dielectric constant decreases at higher concentrations of CFCO5 due to agglomeration of the nanoparticles. Thus, their controlled inclusion in a polymer medium to get improved electrical properties will have a significant impact to the present day research. The enhanced dielectric constant of PVDF-CFCO5 film can be utilized for wide applications such as dielectric material for capacitor application. [ABSTRACT FROM AUTHOR]