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Symmetric Ferroelectric Switching in Ferroelectric Vinylidene Fluoride and Trifluoroethylene Copolymer Films
Guo-dong Zhu*,Xiao-ya Luo,Ji-hao Zhang,Xue-jian Yan
Author NameAffiliationE-mail
Guo-dong Zhu* Department of Materials Science, Fudan University, Shanghai 200433, China gdzhu@fudan.edu.cn 
Xiao-ya Luo Department of Materials Science, Fudan University, Shanghai 200433, China gdzhu@fudan.edu.cn 
Ji-hao Zhang Department of Materials Science, Fudan University, Shanghai 200433, China gdzhu@fudan.edu.cn 
Xue-jian Yan Department of Materials Science, Fudan University, Shanghai 200433, China gdzhu@fudan.edu.cn 
Abstract:
We report the observation of asymmetric switching dual peaks in ferroelectric copolymer films. These dual peaks occurs when the poling electric field is just below the coercive field and can be removed by continuous application of high enough switching voltage. Our experimental observations can be explained by the injection and the redistribution of space charges in ferroelectric films.
Key words:  Ferroelectric polymer, Ferroelectric switching, Poly(vinylidene fluoride)
FundProject:
P(VDF-TrFE)铁电聚合物薄膜不对称铁电开关现象
朱国栋*,罗晓雅,张吉皓,严学俭
摘要:
报道了铁电聚合物薄膜中观测到的不对称铁电开关双峰现象.当薄膜被略低于其矫顽场的电场极化时可观测到铁电开关双峰,当进一步连续施加超过矫顽场的电场后这一开关双峰现象消失.用空间电荷的注入和再分布模型对这一不对称现象进行了探讨.
关键词:  铁电聚合物,铁电开关,P(VDF-TrFE)
DOI:10.1088/1674-0068/23/04/425-430
分类号: