Enhanced Dielectric Response in PVDF-HFP-GO-Ta2O5 Nanocom- posites: Synthesis and Characterization


  • Debajani Tripathy School of Applied Sciences, Centurion University of Technology and Management, Odisha, India
  • Suresh Sagadevan Nanotechnology & Catalysis Research Centre, University of Malaya, 50603 Kuala Lumpur, Malaysia
  • Wei Zhang State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, School of Mechanics and Aerospace Engineering, Dalian University of Technology, Dalian 116024, China
  • Santosh K. Tiwari Centre For New Materials & Surface Engineering, Department of Chemistry, NMAM Institute of Technology, Nitte (Deemed to be University), Nitte, 547110, India
  • Srikanta Moharana School of Applied Sciences, Centurion University of Technology and Management, Odisha, India




PVDF-HFP, graphene oxide, tantalum pentoxide, nanocomposites, dielectric properties


A solution-casting approach was employed to synthesize polymer composites by incorporating tantalum pentoxide (Ta2O5) and graphene oxide (GO) into a PVDF-HFP (polyvinylidene fluoride-co-hexafluoropropylene) matrix. We conducted a thorough examination of the structure, morphology, and dielectric characteristics of these composites using X-ray diffraction, scanning electron microscopy, and impedance analysis. The current research showed that the composites reinforced with Ta2O5 in the GO-PVDF-HFP material had a consistent and noticeable look inside the PVDF-HFP matrix, suggesting effective integration. Furthermore, the relationship between the dielectric and electrical characteristics of the PVDF-HFP-GO-Ta2O5 composites at different weight percentages of Ta2O5 and frequencies has been investigated. This study revealed that the PVDF-HFP-GO-Ta2O5 composite films exhibited a high dielectric constant of 85, with negligible dielectric loss (< 1.5) and excellent AC conductivity (1 × 10-3) at 102 Hz. This suggests their potential appropriateness for energy storage applications. It may offer a simple and direct way to process PVDF-HFP-GO-Ta2O5 nanocomposite films that have superior dielectric properties. This might enable them to be highly promising candidates for a wide range of energy storage applications.




How to Cite

Debajani Tripathy, Suresh Sagadevan, Wei Zhang, Santosh K. Tiwari, Srikanta Moharana. Enhanced Dielectric Response in PVDF-HFP-GO-Ta<sub>2</sub>O<sub>5</sub> Nanocom- posites: Synthesis and Characterization. Advanced Energy Conversion Materials [Internet]. 2024 May 23 [cited 2024 Jul. 18];5(2):145-5. Available from: https://ojs.wiserpub.com/index.php/AECM/article/view/4651