Enhanced Ferroelectric Switching Characteristics of P(VDF-TrFE) for Organic Memory Devices

被引：52
|
作者：
Kusuma, Damar Yoga [1 ]
Nguyen, Chien Anh [1 ]
Lee, Pooi See [1 ]
机构：
[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2010年 / 114卷 / 42期
关键词：
VINYLIDENE FLUORIDE; THIN-FILMS; NUCLEATION; COPOLYMER;
D O I：
10.1021/jp105249f
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In the following work, we report an approach to shorten the ferroelectric switching time of P(VDF-TrFE) film by blending with as-synthesized gold nanoparticles. Ferroelectric hysteresis measurements give remnant polarization and coercive field of 8 mu C/cm(2) and 50 MV/m, respectively. A series of electric pulses was applied for the characterization of ferroelectric polymers, and the switching time response was evaluated. More than 3 orders of magnitude reduction in switching time is observed for the polymer film blended with nanoparticles of the amount 1 x 10(-6) wt %. The observed switching enhancements are discussed in terms of improved alignment of the ferroelectric crystal plane in the presence of the gold nanoparticles, whereby the aligned crystal planes experience a stronger effective field compared to the randomly oriented planes in pristine P(VDF-TrFE).
引用
收藏
页码：13289 / 13293
页数：5
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