Aromatic polythiourea with ultrahigh breakdown strength for high energy density and low loss capacitor applications

  • Shan Wu
  • , Quinn Burlingame
  • , Weiping Li
  • , Minren Lin
  • , Yue Zhou
  • , Qin Chen
  • , Andrew Payzant
  • , Kai Xiao
  • , Qiming Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dielectric capacitors for energy storage are of great importance in modern electronics and electric systems. It is a challenge to realize the high energy density while maintain the low dielectric loss. We investigated an ultra high breakdown electric field of 1.1 GV/m, which is approaching the intrinsic breakdown, in aromatic polythiourea, a new dielectric material that serves a high energy density of 23 J/cm3 as well as high charge-discharge efficiency above 90%. The molecular structure and film surface morphology were also studied, it was proved a polar amorphous phase and glass state material could significantly suppress the high field conduction to several orders smaller compared with regular polymer dielectric materials, which are usually semi-crystalline and in rubber phase.

Original languageEnglish (US)
Title of host publicationPrecision Polymer Materials
Subtitle of host publicationFabricating Functional Assemblies, Surfaces, Interlaces and Devices
PublisherMaterials Research Society
Pages44-48
Number of pages5
ISBN (Print)9781632660923
DOIs
StatePublished - 2013
Event2012 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 25 2012Nov 30 2012

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1499
ISSN (Print)0272-9172

Other

Other2012 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston, MA
Period11/25/1211/30/12

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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