Understanding the conduction and breakdown properties of polyethylene nanodielectrics: Effect of deep traps

Weiwang Wang, Daomin Min, Shengtao Li

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

Due to the variation of charge transport characteristics by introduction of nanostructured filler, the conduction and dielectric breakdown properties of nanodielectrics are poorly understood. This work studies on the effect of deep trap on the dc conduction and breakdown properties of nanodielectrics. X-ray diffraction technique is conducted to study the crystallization behavior of LDPE/Al2O3 nanocomposites. Thermally stimulated current (TSC) is applied to measure the trap parameters of specimens. Breakdown strength and volume resistivity are also measured. The results indicate that small amount of nanoalumina enhances the crystallinity, volume resistivity and breakdown strength, and decreases the crystallite size. The TSC results show that the deep trap level and density both increase at low nanoparticle loading samples (

Original languageEnglish
Article number7422605
Pages (from-to)564-572
Number of pages9
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Volume23
Issue number1
DOIs
Publication statusPublished - 2016 Feb 1
Externally publishedYes

Keywords

  • breakdown
  • crystallinity
  • deep traps
  • interfacial region
  • Nanodielectrics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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