Models of electron trapping and transport in polyethylene: Current--voltage characteristics

Anta, JA and Marcelli, Gianluca and Meunier, M and Quirke, N (2002) Models of electron trapping and transport in polyethylene: Current--voltage characteristics. Journal of Applied Physics, 92 (2). pp. 1002-1008. ISSN 0021-8979. (doi:https://doi.org/10.1063/1.1489714) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Official URL
http://dx.doi.org/10.1063/1.1489714

Abstract

We present a unified method to estimate current–voltage characteristics of insulators starting from ab initio electronic calculations of the properties of the dielectric material. The method consists of three stages: 1) computation of trap energy distributions for excess electrons by means of density functional theory, 2) computation of local electron mobilities from a multiple trapping electron transport model which includes trap filling effects and 3) macroscopic integration of the Poisson and current–field equations, using local electron mobility data from stage 2) to predict the current– voltage characteristics for a material of a given width. The only input to this procedure is the chemical composition of the insulating material. We compare our model results with experimental studies of the current–voltage curve of cross-linked polyethylene.

Item Type: Article
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Instrumentation, Control and Embedded Systems
Depositing User: Gianluca Marcelli
Date Deposited: 11 Nov 2015 17:42 UTC
Last Modified: 19 Apr 2016 09:44 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/51574 (The current URI for this page, for reference purposes)
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