Aromatic polythiourea dielectrics with ultrahigh breakdown field strength, low dielectric loss, and high electric energy density

Shan Wu, Weiping Li, Minren Lin, Quinn Burlingame, Qin Chen, Andrew Payzant, Kai Xiao, Q. M. Zhang

Research output: Contribution to journalArticlepeer-review

309 Scopus citations

Abstract

The promise of aromatic, amorphous, polar polymers containing high dipolar moments with very low defect levels is demonstrated for future dielectric materials with ultrahigh electric-energy density, low loss at high applied fields, and ultrahigh breakdown strengths. Specifically, aromatic polythiourea films exhibit an ultrahigh breakdown field (>1 GV m-1), which results in an energy density of ≈22 J cm-3, as well as a low loss.

Original languageEnglish
Pages (from-to)1734-1738
Number of pages5
JournalAdvanced Materials
Volume25
Issue number12
DOIs
StatePublished - Mar 25 2013

Keywords

  • dielectric loss
  • dielectric strength
  • energy density
  • energy storage
  • polymers

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