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Polyethylene/silica nanocomposites: absorption current and the interpretation of SCLC

Polyethylene/silica nanocomposites: absorption current and the interpretation of SCLC
Polyethylene/silica nanocomposites: absorption current and the interpretation of SCLC
The topic of nanodielectrics continues to receive significant attention from today’s dielectrics community, due to the property enhancements that can stem from the unique interfacial features within such material systems. Nevertheless, understanding of the interfacial phenomena that occur in nanodielectrics and which determine their electrical behaviour is challenging. In this paper, we report on an investigation into the absorption current behaviour of two nanocomposite systems, one containing an untreated nanosilica and the other containing the same nanofiller chemically modified using trimethoxy(propyl)silane. The results indicate that the absorption current behaviour of all the nanocomposites is very different from that of the reference, unfilled polymer; while the current flowing through the unfilled polyethylene decreased monotonically with time in a conventional manner, all nanocomposites revealed an initial decrease followed by a period in which the current increased with increasing time of electric field application. Possible mechanisms leading to the observed absorption current behaviour in the nanocomposites are discussed with the aid of space charge measurements. The presence of space charge limited conduction (SCLC) and its trap-filled limit is proposed.This data supports the article Lau,K.Y. et al (2016) Polyethylene/silica nanocomposites: absorption current and the interpretation of SCLC J. Phys. D: Appl. Phys.
University of Southampton
Lau, K.Y.
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Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
CHEN, GEORGE Y
b766d3f7-a6dc-4c15-8f00-17ad044348c1
Hosier, Ian
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Ching, K.Y.
94062772-83df-480e-b93f-b803c6217fdf
Quirke, Nick
631f103a-1811-42c9-9b54-700284bcca0f
Lau, K.Y.
4f20d9d7-c517-4af9-bb57-b4f47538bf68
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
CHEN, GEORGE Y
b766d3f7-a6dc-4c15-8f00-17ad044348c1
Hosier, Ian
6a44329e-b742-44de-afa7-073f80a78e26
Ching, K.Y.
94062772-83df-480e-b93f-b803c6217fdf
Quirke, Nick
631f103a-1811-42c9-9b54-700284bcca0f

Lau, K.Y., Vaughan, Alun, CHEN, GEORGE Y, Hosier, Ian, Ching, K.Y. and Quirke, Nick (2016) Polyethylene/silica nanocomposites: absorption current and the interpretation of SCLC. University of Southampton doi:10.5258/SOTON/386426 [Dataset]

Record type: Dataset

Abstract

The topic of nanodielectrics continues to receive significant attention from today’s dielectrics community, due to the property enhancements that can stem from the unique interfacial features within such material systems. Nevertheless, understanding of the interfacial phenomena that occur in nanodielectrics and which determine their electrical behaviour is challenging. In this paper, we report on an investigation into the absorption current behaviour of two nanocomposite systems, one containing an untreated nanosilica and the other containing the same nanofiller chemically modified using trimethoxy(propyl)silane. The results indicate that the absorption current behaviour of all the nanocomposites is very different from that of the reference, unfilled polymer; while the current flowing through the unfilled polyethylene decreased monotonically with time in a conventional manner, all nanocomposites revealed an initial decrease followed by a period in which the current increased with increasing time of electric field application. Possible mechanisms leading to the observed absorption current behaviour in the nanocomposites are discussed with the aid of space charge measurements. The presence of space charge limited conduction (SCLC) and its trap-filled limit is proposed.This data supports the article Lau,K.Y. et al (2016) Polyethylene/silica nanocomposites: absorption current and the interpretation of SCLC J. Phys. D: Appl. Phys.

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KYL_20Absorption_20Current_20Data.xlsx - Dataset
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Published date: 2016
Organisations: EEE, Optoelectronics Research Centre

Identifiers

Local EPrints ID: 386426
URI: http://eprints.soton.ac.uk/id/eprint/386426
PURE UUID: c4f24b78-af5a-4a5f-8800-8252e503bac2
ORCID for Alun Vaughan: ORCID iD orcid.org/0000-0002-0535-513X
ORCID for Ian Hosier: ORCID iD orcid.org/0000-0003-4365-9385

Catalogue record

Date deposited: 26 Jan 2016 15:34
Last modified: 09 May 2019 00:36

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Contributors

Creator: K.Y. Lau
Creator: Alun Vaughan ORCID iD
Creator: GEORGE Y CHEN
Creator: Ian Hosier ORCID iD
Creator: K.Y. Ching
Creator: Nick Quirke

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