Indian Journal of Science and Technology
Year: 2021, Volume: 14, Issue: 31, Pages: 2579-2589
T E Somesh1,2, L R Shivakumar1, M A Sangamesh3, Siddaramaiah2, T Demappa1*
1Department of Polymer Science, University of Mysore, India
2Department of Polymer Science & Technology, JSS Research Foundation, Mysore, India
3Department of Chemistry, the National Institute of Engineering, Mysore, India
Email: [email protected]
Received Date:29 August 2021, Accepted Date:07 September 2021, Published Date:22 September 2021
Objectives: Synthesis of hybrid nanoparticles (NPs) and intercalation of as prepared NPs inside polymer matrix to fabricate polymer nanocomposites (NC) and evaluate the optoelectronic properties. Method: A simple, time consuming solution combustion method was used to synthesize silver doped gallium oxide (AgGaO2) NPs. The solution casting process was employed to prepare NC films of poly(vinyl alcohol) (PVA) with the inclusion of AgGaO2 NPs as nanofiller. Finding: The analytical technique such as Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy and differential scanning calorimetry analyses were used to analyze the PVA/AgGaO2 NC films. The findings of various characterization approaches showed that the morphological, structural and thermal characteristics of PVA/AgGaO2 NC films had improved, as well as confirms the existence of AgGaO2 NPs in the PVA matrix. Furthermore, the dielectric characteristics of the PVA/AgGaO2 NC films were studied using an LCR meter at various frequencies (50 Hz–1 MHz). With intercalating four different wt% of AgGaO2 NPs content as 0.5, 1, 2 and 4 wt% the dielectric constant and dielectric loss of NC films with 4 wt % AgGaO2 NPs incorporated were 112.1 and 51.5 respectively. Novelty: This improvement in dielectric characteristics revealed the uniform distribution and effective interaction of AgGaO2 NPs with the active site of PVA chains. The preceding findings demonstrated that the obtained PVA NCs were promising materials for flexible energy storage and UV-shielding applications.
Keywords: Hybrid metal oxides; Dielectric constant and dielectric loss; AC conductivity; Optical energy band gap
© 2021 Somesh et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)
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