Department of Electrical Engineering and the Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA.
Adv Mater. 2013 Mar 25;25(12):1734-8. doi: 10.1002/adma.201204072. Epub 2013 Jan 14.
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.
具有高偶极矩和极低缺陷水平的芳香族、无定形、极性聚合物的前景，为未来具有超高电能密度、高应用场下低损耗和超高击穿强度的介电材料提供了可能。具体来说，芳香族聚硫脲薄膜具有超高击穿场（>1 GV m(-1))，从而实现了约 22 J cm(-3)的能量密度，同时损耗也较低。
