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

页码：13289 / 13293

页数：5

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