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Charge Transport in LDPE Nanocomposites Part I—Experimental Approach
This work presents results of bulk conductivity and surface potential decay measurements on low-density polyethylene and its nanocomposites filled with uncoated MgO and Al(2)O(3), with the aim to highlight the effect of the nanofillers on charge transport processes. Material samples at various fille...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432595/ https://www.ncbi.nlm.nih.gov/pubmed/30979179 http://dx.doi.org/10.3390/polym8030087 |
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author | Hoang, Anh T. Pallon, Love Liu, Dongming Serdyuk, Yuriy V. Gubanski, Stanislaw M. Gedde, Ulf W. |
author_facet | Hoang, Anh T. Pallon, Love Liu, Dongming Serdyuk, Yuriy V. Gubanski, Stanislaw M. Gedde, Ulf W. |
author_sort | Hoang, Anh T. |
collection | PubMed |
description | This work presents results of bulk conductivity and surface potential decay measurements on low-density polyethylene and its nanocomposites filled with uncoated MgO and Al(2)O(3), with the aim to highlight the effect of the nanofillers on charge transport processes. Material samples at various filler contents, up to 9 wt %, were prepared in the form of thin films. The performed measurements show a significant impact of the nanofillers on reduction of material’s direct current (dc) conductivity. The investigations thus focused on the nanocomposites having the lowest dc conductivity. Various mechanisms of charge generation and transport in solids, including space charge limited current, Poole-Frenkel effect and Schottky injection, were utilized for examining the experimental results. The mobilities of charge carriers were deduced from the measured surface potential decay characteristics and were found to be at least two times lower for the nanocomposites. The temperature dependencies of the mobilities were compared for different materials. |
format | Online Article Text |
id | pubmed-6432595 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64325952019-04-02 Charge Transport in LDPE Nanocomposites Part I—Experimental Approach Hoang, Anh T. Pallon, Love Liu, Dongming Serdyuk, Yuriy V. Gubanski, Stanislaw M. Gedde, Ulf W. Polymers (Basel) Article This work presents results of bulk conductivity and surface potential decay measurements on low-density polyethylene and its nanocomposites filled with uncoated MgO and Al(2)O(3), with the aim to highlight the effect of the nanofillers on charge transport processes. Material samples at various filler contents, up to 9 wt %, were prepared in the form of thin films. The performed measurements show a significant impact of the nanofillers on reduction of material’s direct current (dc) conductivity. The investigations thus focused on the nanocomposites having the lowest dc conductivity. Various mechanisms of charge generation and transport in solids, including space charge limited current, Poole-Frenkel effect and Schottky injection, were utilized for examining the experimental results. The mobilities of charge carriers were deduced from the measured surface potential decay characteristics and were found to be at least two times lower for the nanocomposites. The temperature dependencies of the mobilities were compared for different materials. MDPI 2016-03-16 /pmc/articles/PMC6432595/ /pubmed/30979179 http://dx.doi.org/10.3390/polym8030087 Text en © 2016 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hoang, Anh T. Pallon, Love Liu, Dongming Serdyuk, Yuriy V. Gubanski, Stanislaw M. Gedde, Ulf W. Charge Transport in LDPE Nanocomposites Part I—Experimental Approach |
title | Charge Transport in LDPE Nanocomposites Part I—Experimental Approach |
title_full | Charge Transport in LDPE Nanocomposites Part I—Experimental Approach |
title_fullStr | Charge Transport in LDPE Nanocomposites Part I—Experimental Approach |
title_full_unstemmed | Charge Transport in LDPE Nanocomposites Part I—Experimental Approach |
title_short | Charge Transport in LDPE Nanocomposites Part I—Experimental Approach |
title_sort | charge transport in ldpe nanocomposites part i—experimental approach |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432595/ https://www.ncbi.nlm.nih.gov/pubmed/30979179 http://dx.doi.org/10.3390/polym8030087 |
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