Abstract

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.

Details

Title
Polymeric Nanocomposites Membranes with High Permittivity Based on PVA-ZnO Nanoparticles for Potential Applications in Flexible Electronics
Author
Ambrosio, Roberto 1   VIAFID ORCID Logo  ; Carrillo, Amanda 2 ; Mota, Maria L 3   VIAFID ORCID Logo  ; de la Torre, Karla 2 ; Torrealba, Richard 1   VIAFID ORCID Logo  ; Moreno, Mario 4 ; Vazquez, Hector 5 ; Flores, Javier 6 ; Israel Vivaldo 1 

1  Electronic Department, Meritorious Autonomous University of Puebla, 72590 Puebla, Mexico 
2  Electrical Department, Ciudad Juarez Autonomous University, 32310 Chihuahua, Mexico 
3  Electrical Department, Ciudad Juarez Autonomous University, 32310 Chihuahua, Mexico; 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 
6  Electronic Department, Meritorious Autonomous University of Puebla, 72590 Puebla, Mexico; National Institute of Technology of Mexico -I.T. Puebla, 72220 Puebla, Mexico 
First page
1370
Publication year
2018
Publication date
2018
Publisher
MDPI AG
e-ISSN
20734360
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.3390/polym10121370
ProQuest document ID
2582836467
Copyright
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.