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Open AccessArticle

Polymeric Nanocomposites Membranes with High Permittivity Based on PVA-ZnO Nanoparticles for Potential Applications in Flexible Electronics

1
Electronic Department, Meritorious Autonomous University of Puebla, 72590 Puebla, Mexico
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Electrical Department, Ciudad Juarez Autonomous University, 32310 Chihuahua, Mexico
3
CONACYT, Ciudad Juarez Autonomous University 32310 Chihuahua, Mexico
4
Electronic Department, National Institute for Astrophysics Optics and Electronics, 72000 Puebla, Mexico
5
Electronic Instrumentation Faculty, Universidad Veracruzana, 91000 Xalapa, Mexico
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National Institute of Technology of Mexico -I.T. Puebla, 72220 Puebla, Mexico
*
Author to whom correspondence should be addressed.
Polymers 2018, 10(12), 1370; https://doi.org/10.3390/polym10121370
Received: 24 October 2018 / Revised: 4 December 2018 / Accepted: 7 December 2018 / Published: 11 December 2018
(This article belongs to the Special Issue Polymers for Electronic Applications)
This study reports the optical, structural, electrical and dielectric properties of Poly (vinyl alcohol) thin films membranes with embedded ZnO nanoparticles (PVA/ZnO) obtained by the solution casting method at low temperature of deposition. Fourier Transform Infrared spectra showed the characteristics peaks, which correspond to O–H and Zn–O bonds present in the hybrid material. The X-ray diffraction patterns indicated the presence of ZnO structure into the films. The composite material showed low absorbance and a wide band of gap energy from 5.5 to 5.83 eV. The surface morphology for the thin films of PVA/ZnO was studied by Atomic Force Microscopy and Scanning Electron Microscopy. The electrical properties of the membranes were also characterized by current-voltage characteristics and the DC conductivity showed Arrhenius behavior with values of activation energy from 0.62 to 0.78 eV and maximum conductivity at 2.4 × 10−12 S/cm. The dielectric properties of the nanocomposites were measured from low to high frequencies, and the results showed a high dielectric constant (ε) in the order of 104 at low frequency and values from ε ≈ 2000 to 100 in the range of 1 KHz–1 MHz respectively. The properties of PVA/ZnO such as the high permittivity and the low temperature of processing make it a suitable material for potential applications in the development of flexible electronic devices. View Full-Text
Keywords: solution process; thin films; composite material; dielectric constant solution process; thin films; composite material; dielectric constant
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MDPI and ACS Style

Ambrosio, R.; Carrillo, A.; Mota, M.L.; De la Torre, K.; Torrealba, R.; Moreno, M.; Vazquez, H.; Flores, J.; Vivaldo, I. Polymeric Nanocomposites Membranes with High Permittivity Based on PVA-ZnO Nanoparticles for Potential Applications in Flexible Electronics. Polymers 2018, 10, 1370.

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