Enhanced Piezoelectric Behavior of PVDF Nanocomposite by AC Dielectrophoresis Alignment of ZnO Nanowires

Enhanced Piezoelectric Behavior of PVDF Nanocomposite by AC Dielectrophoresis Alignment of ZnO Nanowires

In contrast to commercial piezoelectric ceramics, lead-free materials such as ZnO and a polymer matrix are proper candidates for use in ecofriendly applications. In this article, the authors represent a technique using ZnO nanowires with a polyvinylidene fluoride (PVDF) matrix in a piezoelectric pol...

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Main Authors: Kyungwho Choi, Woongchul Choi, Choongho Yu, Yong Tae Park
Format: Article
Language:English
Published: Hindawi Limited 2017-01-01
Series:Journal of Nanomaterials
Online Access:http://dx.doi.org/10.1155/2017/6590121
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spelling doaj-1b586776d29847d58a32e916d5ea88cb2020-11-24T23:16:52ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292017-01-01201710.1155/2017/65901216590121Enhanced Piezoelectric Behavior of PVDF Nanocomposite by AC Dielectrophoresis Alignment of ZnO NanowiresKyungwho Choi0Woongchul Choi1Choongho Yu2Yong Tae Park3New Transportation Systems Research Center, Korea Railroad Research Institute, Uiwang-si, Gyeonggi-do 16105, Republic of KoreaDepartment of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USADepartment of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USADepartment of Mechanical Engineering, Myongji University, Yongin-si, Gyeonggi-do 17058, Republic of KoreaIn contrast to commercial piezoelectric ceramics, lead-free materials such as ZnO and a polymer matrix are proper candidates for use in ecofriendly applications. In this article, the authors represent a technique using ZnO nanowires with a polyvinylidene fluoride (PVDF) matrix in a piezoelectric polymer composite. By aligning the nanowires in the matrix in a desired direction by AC dielectrophoresis, the piezoelectric behavior was enhanced. The dielectric constant of the composite was improved by increasing the concentration of the ZnO nanowires as well. Specifically, the resulting dielectric constant shows an improvement of 400% with aligned ZnO nanowires by increasing the poling effect compared to that of a randomly oriented nanowire composite without a poling process.http://dx.doi.org/10.1155/2017/6590121
collection DOAJ
language English
format Article
sources DOAJ
author Kyungwho Choi
Woongchul Choi
Choongho Yu
Yong Tae Park
spellingShingle Kyungwho Choi
Woongchul Choi
Choongho Yu
Yong Tae Park
Enhanced Piezoelectric Behavior of PVDF Nanocomposite by AC Dielectrophoresis Alignment of ZnO Nanowires
Journal of Nanomaterials
author_facet Kyungwho Choi
Woongchul Choi
Choongho Yu
Yong Tae Park
author_sort Kyungwho Choi
title Enhanced Piezoelectric Behavior of PVDF Nanocomposite by AC Dielectrophoresis Alignment of ZnO Nanowires
title_short Enhanced Piezoelectric Behavior of PVDF Nanocomposite by AC Dielectrophoresis Alignment of ZnO Nanowires
title_full Enhanced Piezoelectric Behavior of PVDF Nanocomposite by AC Dielectrophoresis Alignment of ZnO Nanowires
title_fullStr Enhanced Piezoelectric Behavior of PVDF Nanocomposite by AC Dielectrophoresis Alignment of ZnO Nanowires
title_full_unstemmed Enhanced Piezoelectric Behavior of PVDF Nanocomposite by AC Dielectrophoresis Alignment of ZnO Nanowires
title_sort enhanced piezoelectric behavior of pvdf nanocomposite by ac dielectrophoresis alignment of zno nanowires
publisher Hindawi Limited
series Journal of Nanomaterials
issn 1687-4110
1687-4129
publishDate 2017-01-01
description In contrast to commercial piezoelectric ceramics, lead-free materials such as ZnO and a polymer matrix are proper candidates for use in ecofriendly applications. In this article, the authors represent a technique using ZnO nanowires with a polyvinylidene fluoride (PVDF) matrix in a piezoelectric polymer composite. By aligning the nanowires in the matrix in a desired direction by AC dielectrophoresis, the piezoelectric behavior was enhanced. The dielectric constant of the composite was improved by increasing the concentration of the ZnO nanowires as well. Specifically, the resulting dielectric constant shows an improvement of 400% with aligned ZnO nanowires by increasing the poling effect compared to that of a randomly oriented nanowire composite without a poling process.
url http://dx.doi.org/10.1155/2017/6590121
work_keys_str_mv AT kyungwhochoi enhancedpiezoelectricbehaviorofpvdfnanocompositebyacdielectrophoresisalignmentofznonanowires
AT woongchulchoi enhancedpiezoelectricbehaviorofpvdfnanocompositebyacdielectrophoresisalignmentofznonanowires
AT choonghoyu enhancedpiezoelectricbehaviorofpvdfnanocompositebyacdielectrophoresisalignmentofznonanowires
AT yongtaepark enhancedpiezoelectricbehaviorofpvdfnanocompositebyacdielectrophoresisalignmentofznonanowires
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