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Shan Wu, Weiping Li, Minren Lin, Quinn Burlingame, Qin Chen, Andrew Payzant, Kai Xiao and Q. M. Zhang Aromatic Polythiourea Dielectrics with Ultrahigh Breakdown Field Strength, Low Dielectric Loss, and High Electric Energy Density Advanced Materials 25

Version of Record online: 14 JAN 2013 | DOI: 10.1002/adma.201204072

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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.

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