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Adv Mater. 2013 Mar 25;25(12):1734-8. doi: 10.1002/adma.201204072. Epub 2013 Jan 14.

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

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  • 1Department of Electrical Engineering and the Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA.


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.

Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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