Giant flexoelectricity in polyvinylidene fluoride films

被引：87

作者：

Baskaran, Sivapalan ^{[1
]}

Ramachandran, Narayanan ^{[1
]}

He, Xiangtong ^{[1
]}

Thiruvannamalai, Sankar ^{[1
]}

Lee, Ho Joon ^{[1
]}

Heo, Hyun ^{[1
]}

Chen, Qin ^{[2
]}

Fu, John Y. ^{[1
]}

机构：

[1] SUNY Buffalo, Dept Mech & Aerosp Engn, Buffalo, NY 14260 USA

[2] GE Global Res Ctr, Niskayuna, NY 12309 USA

来源：

PHYSICS LETTERS A | 2011年 / 375卷 / 20期

关键词：

Flexoelectricity; Polyvinylidene fluoride; POLY(VINYLIDENE FLUORIDE); LIQUID-CRYSTALS; PHASE;

D O I：

10.1016/j.physleta.2011.04.011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent studies have shown that giant flexoelectricity may exist in certain elastomers with bent-core molecular structures, which contradicts the previous theoretical estimation that the flexoelectric coupling is small in those materials. In this Letter, we report an analogous phenomenon, i.e., the giant direct flexoelectric effect, observed in a polyvinylidene fluoride (PVDF) film. Our experimental studies indicate that such an enhanced flexoelectric effect might be induced by the interaction between the energy couplings of the apolar and the polar molecular structures of the polymer film under elastic deformation. (C) 2011 Elsevier By. All rights reserved.

引用

页码：2082 / 2084

页数：3

共 20 条

[1]

[Anonymous], 1975, J PHYS

[2] Large Flow Birefringence of Nematogenic Bent-Core Liquid Crystals [J].

Bailey, C. ;

Fodor-Csorba, K. ;

Verduzco, R. ;

Gleeson, J. T. ;

Sprunt, S. ;

Jakli, A. .

PHYSICAL REVIEW LETTERS, 2009, 103 (23)

[3]

Blinov L. M., 1984, Soviet Physics - Uspekhi, V27, P492, DOI 10.1070/PU1984v027n07ABEH004027

[4] A dielectric polymer with high electric energy density and fast discharge speed [J].

Chu, Baojin ;

Zhou, Xin ;

Ren, Kailiang ;

Neese, Bret ;

Lin, Minren ;

Wang, Qing ;

Bauer, F. ;

Zhang, Q. M. .

SCIENCE, 2006, 313 (5785) :334-336

[5] ELECTRIC-FIELD-INDUCED PHASE-CHANGES IN POLY(VINYLIDENE FLUORIDE) [J].

DAVIS, GT ;

MCKINNEY, JE ;

BROADHURST, MG ;

ROTH, SC .

JOURNAL OF APPLIED PHYSICS, 1978, 49 (10) :4998-5002

[6]

De Gennes P. G., 1974, The Physics of Liquid Crystals

[7] Ferroelectric Response and Induced Biaxiality in the Nematic Phase of a Bent-Core Mesogen [J].

Francescangeli, Oriano ;

Stanic, Vesna ;

Torgova, Sofia I. ;

Strigazzi, Alfredo ;

Scaramuzza, Nicola ;

Ferrero, Claudio ;

Dolbnya, Igor P. ;

Weiss, Thomas M. ;

Berardi, Roberto ;

Muccioli, Luca ;

Orlandi, Silvia ;

Zannoni, Claudio .

ADVANCED FUNCTIONAL MATERIALS, 2009, 19 (16) :2592-2600

[8]

GREGORIO R, 1994, J POLYM SCI POL PHYS, V32, P859, DOI 10.1002/polb.1994.090320509

[9] THE ANNEALING OF SOLUTION GROWN CRYSTALS OF ALPHA-POLY(VINYLIDENE FLUORIDE) AND GAMMA-POLY(VINYLIDENE FLUORIDE) [J].

GRUBB, DT ;

CHOI, KW .

JOURNAL OF APPLIED PHYSICS, 1981, 52 (10) :5908-5915

[10] Giant flexoelectricity in bent-core nematic liquid crystal elastomers [J].

Harden, J. ;

Chambers, M. ;

Verduzco, R. ;

Luchette, P. ;

Gleeson, J. T. ;

Sprunt, S. ;

Jakli, A. .

APPLIED PHYSICS LETTERS, 2010, 96 (10)

← 1 2 →