Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 34, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1007/s10854-023-10345-6
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Solution casting technique was used to prepare PVA/PEDOT:PSS/CuO nanocomposites. The structural, morphological, and thermal properties of the nanocomposites showed good interaction between the polymer blend and the CuO nanoparticles. The nanocomposite with 15% CuO nanoparticles exhibited the highest dielectric constant, dielectric loss, and AC conductivity, indicating its potential for energy storage applications.
Solution casting technique was adopted to prepare Polyvinyl Alcohol (PVA)/Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonic acid) (PEDOT:PSS)/Copper (II) Oxide (CuO) nanocomposites. Structural, morphological and thermal properties of the PVA/PEDOT:PSS/CuO nanocomposites revealed good interaction between polymer blend and the CuO NPs. Further, dielectric behaviour of the prepared nanocomposites was performed and the PVA/PDEDOT:PSS/CuO nanocomposite with 15% of CuO NPs showed maximum dielectric constant (epsilon = 3615.62 at 50 Hz, 150 degrees C), dielectric loss (Tan delta = 11.37 at 50 Hz, 150 degrees C) and AC conductivity (sigma(ac) = 1.67 x 10(-5) S m(-1) at 150 degrees C). Further, the Cole-Cole plots exhibited the semicircular arcs with fitted impedance data along with equivalent circuits were represented. The higher dielectric constant, lower dielectric loss, and enhancement in the AC conductivity with the increase in the nanofiller contents decrease the impedance and capacitive reactance in the PVA/PEDOT:PSS/CuO nanocomposites. Thus, the enhanced dielectric properties of the nanocomposites are suggested to be promising materials for energy storage applications.
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