Thermally stable dynamic piezoelectricity in sandwich films of porous and nonporous amorphous fluoropolymer

被引：51

作者：

Mellinger, A ^{[1
]}

Wegener, M ^{[1
]}

Wirges, W ^{[1
]}

Gerhard-Multhaupt, R ^{[1
]}

机构：

[1] Univ Potsdam, Dept Phys, D-14469 Potsdam, Germany

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 12期

关键词：

D O I：

10.1063/1.1404405

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Porous amorphous fluoropolymer films of very low stiffness were produced by a solvent evaporation technique. Corona-charged sandwich films consisting of a porous and a nonporous layer exhibit piezoelectric thickness-extension resonances in their dielectric spectrum, through which the temperature dependence of their dynamic stiffness, coupling factor, and piezoelectric coefficient could be determined. Their strong piezoelectricity with coefficients of up to 600 pC/N at temperatures of at least 120 degreesC could make these polymer electret films interesting candidates for sensor and actuator applications in elevated temperature environments. (C) 2001 American Institute of Physics.

引用

页码：1852 / 1854

页数：3

共 14 条

[1]

[Anonymous], P 10 IEEE INT S EL D

[2]

[Anonymous], 1987, 1761987 ANSIIEEE

[3]

AVAKIAN P, 1997, DIELECTRIC SPECTROSC

[4]

BACKMAN J, 1990, J AUDIO ENG SOC, V38, P364

[5]

BACKMAN J, 1990, P IEEE INT C AC SPEE, V2, P1173

[6] A direct current piezoelectric effect in fluorinated ethylene-propylene copolymer due to space charge [J].

Faria, RM .

APPLIED PHYSICS LETTERS, 1996, 69 (13) :1972-1974

[7] Porous PTFE space-charge electrets for piezoelectric applications [J].

Gerhard-Multhaupt, R ;

Künstler, W ;

Görne, T ;

Pucher, A ;

Weinhold, T ;

Seiss, M ;

Xia, ZF ;

Wedel, A ;

Danz, R .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2000, 7 (04) :480-488

[8]

Kirjavainen K., 1987, U.S. Patent, Patent No. 4654546

[9] Piezoelectricity of porous polytetrafluoroethylene single- and multiple-film electrets containing high charge densities of both polarities [J].

Künstler, W ;

Xia, Z ;

Weinhold, T ;

Pucher, A ;

Gerhard-Multhaupt, R .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2000, 70 (01) :5-8

[10]

MASON WP, 1967, PHYSICAL ACOUSTICS A, V1

← 1 2 →