Switching current characteristics of ferroelectric P(VDF-TrFE) copolymer films

被引：3
|
作者：
Mai, Manfang [1 ]
Liu, Guohua [1 ]
Zhu, Chuanyun [1 ]
Ma, Xinzhou [2 ]
机构：
[1] Foshan Univ, Sch Phys & Optoelect Engn, Foshan, Peoples R China
[2] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan, Peoples R China
来源：
FERROELECTRICS | 2019年 / 550卷 / 01期
基金：
美国国家科学基金会;
关键词：
Transient current; switching process; P(VDF-TrFE) film; ferroelectric; VINYLIDENE FLUORIDE; NEGATIVE CAPACITANCE; SULFATE;
D O I：
10.1080/00150193.2019.1652502
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The switching process of ferroelectric P(VDF-TrFE) thin films with different thicknesses is investigated through transient switching current measurements. The profile of the transient current shows a strong size effect, i.e. whether there is a peak in the transient current depends on film thickness. The different switching current profiles are attributed to a transition of switching kinetics, characterized by a unique field dependent switching time turning to a distribution of switching times in the system. Furthermore, transient current at different temperature is evaluated. The Arrhenius dependence of peak time indicates that the switching process is thermally activated.
引用
收藏
页码：127 / 135
页数：9
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