The Strong Dependence of Polarization Fatigue on Poling-Voltage Conditions in Ferroelectric Vinylidene Fluoride and Trifluoroethylene Copolymer Films

被引：8
|
作者：
Zhu, GuoDong [1 ]
Cong, Yu [1 ]
Zhang, JiHao [1 ]
Luo, XiaoYa [1 ]
Yan, XueJian [1 ]
机构：
[1] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China
来源：
IEEE ELECTRON DEVICE LETTERS | 2010年 / 31卷 / 04期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
Ferroelectric capacitors; ferroelectric memories; ferroelectric polymer; polarization fatigue; poly(vinylidene fluoride) and its copolymer with trifluoroethylene [P(VDF-TrFE); THIN-FILMS;
D O I：
10.1109/LED.2010.2041320
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Recently, polarization fatigue in ferroelectric polymers has attracted much attention due to their potentials in nonvolatile memory devices, although the mechanism behind is still an open question. In this letter, we report the strong dependence of polarization fatigue on poling voltages, which indicates that the application of a poling electric field slightly below the coercive field can greatly degrade the fatigue endurance. This phenomenon may be directly related to the fatigue mechanism, and its origin is discussed based on the understanding of the injection and redistribution of space charges in ferroelectric films.
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页码：359 / 361
页数：3
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