Frequency – dependent conductivity and dielectric permittivity of polyaniline / y2o3 composites
International Journal of Development Research
Frequency – dependent conductivity and dielectric permittivity of polyaniline / y2o3 composites
Received 22nd July, 2017; Received in revised form 04th August, 2017; Accepted 27th September, 2017; Published online 10th October, 2017
Copyright ©2017, Manjunath. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Conducting polyaniline/Yattrium oxide (PANI/Y2O3) composites have been synthesized by insitu deposition technique by placing fine graded Y2O3 in polymerization mixture of aniline. The PANI/ Y2O3 composites have been synthesized with various compositions viz., 10,20,30,40 and 50 wt % of Y2O3 in PANI. The ac conductivity was studied in the frequency range 102 – 106 Hz. It is observed from the ac conductivity studies that the ac conductivity is found to be constant up to 105 Hz and there after it increases steeply which is a characteristic feature of disordered materials. The dielectric behaviour was also investigated in the frequency range 102 – 106 Hz. The dimensions of Y2O3 particles in the matrix have a greater influence on the conductivity values and the observed dielectric values.
