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Piezoelectric Effect and Electroactive Phase Nucleation in Self-Standing Films of Unpoled PVDF Nanocomposite Films
Novel polymer-based piezoelectric nanocomposites with enhanced electromechanical properties open new opportunities for the development of wearable energy harvesters and sensors. This paper investigates how the dissolution of different types of hexahydrate metal salts affects β-phase content and piez...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6165421/ https://www.ncbi.nlm.nih.gov/pubmed/30235819 http://dx.doi.org/10.3390/nano8090743 |
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author | Fortunato, Marco Chandraiahgari, Chandrakanth Reddy De Bellis, Giovanni Ballirano, Paolo Sarto, Francesca Tamburrano, Alessio Sarto, Maria Sabrina |
author_facet | Fortunato, Marco Chandraiahgari, Chandrakanth Reddy De Bellis, Giovanni Ballirano, Paolo Sarto, Francesca Tamburrano, Alessio Sarto, Maria Sabrina |
author_sort | Fortunato, Marco |
collection | PubMed |
description | Novel polymer-based piezoelectric nanocomposites with enhanced electromechanical properties open new opportunities for the development of wearable energy harvesters and sensors. This paper investigates how the dissolution of different types of hexahydrate metal salts affects β-phase content and piezoelectric response (d(33)) at nano- and macroscales of polyvinylidene fluoride (PVDF) nanocomposite films. The strongest enhancement of the piezoresponse is observed in PVDF nanocomposites processed with Mg(NO(3))(2)⋅6H(2)O. The increased piezoresponse is attributed to the synergistic effect of the dipole moment associated with the nucleation of the electroactive phase and with the electrostatic interaction between the CF(2) group of PVDF and the dissolved salt through hydrogen bonding. The combination of nanofillers like graphene nanoplatelets or zinc oxide nanorods with the hexahydrate salt dissolution in PVDF results in a dramatic reduction of d(33), because the nanofiller assumes a competitive role with respect to H-bond formation between PVDF and the dissolved metal salt. The measured peak value of d(33) reaches the local value of 13.49 pm/V, with an average of 8.88 pm/V over an area of 1 cm(2). The proposed selection of metal salt enables low-cost production of piezoelectric PVDF nanocomposite films, without electrical poling or mechanical stretching, offering new opportunities for the development of devices for energy harvesting and wearable sensors. |
format | Online Article Text |
id | pubmed-6165421 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-61654212018-10-10 Piezoelectric Effect and Electroactive Phase Nucleation in Self-Standing Films of Unpoled PVDF Nanocomposite Films Fortunato, Marco Chandraiahgari, Chandrakanth Reddy De Bellis, Giovanni Ballirano, Paolo Sarto, Francesca Tamburrano, Alessio Sarto, Maria Sabrina Nanomaterials (Basel) Article Novel polymer-based piezoelectric nanocomposites with enhanced electromechanical properties open new opportunities for the development of wearable energy harvesters and sensors. This paper investigates how the dissolution of different types of hexahydrate metal salts affects β-phase content and piezoelectric response (d(33)) at nano- and macroscales of polyvinylidene fluoride (PVDF) nanocomposite films. The strongest enhancement of the piezoresponse is observed in PVDF nanocomposites processed with Mg(NO(3))(2)⋅6H(2)O. The increased piezoresponse is attributed to the synergistic effect of the dipole moment associated with the nucleation of the electroactive phase and with the electrostatic interaction between the CF(2) group of PVDF and the dissolved salt through hydrogen bonding. The combination of nanofillers like graphene nanoplatelets or zinc oxide nanorods with the hexahydrate salt dissolution in PVDF results in a dramatic reduction of d(33), because the nanofiller assumes a competitive role with respect to H-bond formation between PVDF and the dissolved metal salt. The measured peak value of d(33) reaches the local value of 13.49 pm/V, with an average of 8.88 pm/V over an area of 1 cm(2). The proposed selection of metal salt enables low-cost production of piezoelectric PVDF nanocomposite films, without electrical poling or mechanical stretching, offering new opportunities for the development of devices for energy harvesting and wearable sensors. MDPI 2018-09-19 /pmc/articles/PMC6165421/ /pubmed/30235819 http://dx.doi.org/10.3390/nano8090743 Text en © 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/). |
spellingShingle | Article Fortunato, Marco Chandraiahgari, Chandrakanth Reddy De Bellis, Giovanni Ballirano, Paolo Sarto, Francesca Tamburrano, Alessio Sarto, Maria Sabrina Piezoelectric Effect and Electroactive Phase Nucleation in Self-Standing Films of Unpoled PVDF Nanocomposite Films |
title | Piezoelectric Effect and Electroactive Phase Nucleation in Self-Standing Films of Unpoled PVDF Nanocomposite Films |
title_full | Piezoelectric Effect and Electroactive Phase Nucleation in Self-Standing Films of Unpoled PVDF Nanocomposite Films |
title_fullStr | Piezoelectric Effect and Electroactive Phase Nucleation in Self-Standing Films of Unpoled PVDF Nanocomposite Films |
title_full_unstemmed | Piezoelectric Effect and Electroactive Phase Nucleation in Self-Standing Films of Unpoled PVDF Nanocomposite Films |
title_short | Piezoelectric Effect and Electroactive Phase Nucleation in Self-Standing Films of Unpoled PVDF Nanocomposite Films |
title_sort | piezoelectric effect and electroactive phase nucleation in self-standing films of unpoled pvdf nanocomposite films |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6165421/ https://www.ncbi.nlm.nih.gov/pubmed/30235819 http://dx.doi.org/10.3390/nano8090743 |
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