TY - GEN
T1 - Aromatic polythiourea with ultrahigh breakdown strength for high energy density and low loss capacitor applications
AU - Wu, Shan
AU - Burlingame, Quinn
AU - Li, Weiping
AU - Lin, Minren
AU - Zhou, Yue
AU - Chen, Qin
AU - Payzant, Andrew
AU - Xiao, Kai
AU - Zhang, Qiming
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
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U2 - 10.1557/opl.2013.444
DO - 10.1557/opl.2013.444
M3 - Conference contribution
AN - SCOPUS:84899785558
SN - 9781632660923
T3 - Materials Research Society Symposium Proceedings
SP - 44
EP - 48
BT - Precision Polymer Materials
PB - Materials Research Society
T2 - 2012 MRS Fall Meeting
Y2 - 25 November 2012 through 30 November 2012
ER -