Wide-band electrical and electromechanical properties of polyvinylidene fluoride (PVDF) and polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE) piezoelectric films using electro-acoustic reflectometry-Reference-Cited by-同舟云学术

Wide-band electrical and electromechanical properties of polyvinylidene fluoride (PVDF) and polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE) piezoelectric films using electro-acoustic reflectometry

Published:2023-04-01 Issue:4 Volume:153 Page:2499
ISSN:0001-4966
Container-title:The Journal of the Acoustical Society of America
language:en
Short-container-title:

Author:

Maréchal É.¹,Géron E.¹,Holé S.¹^ORCID

Affiliation:

1. Laboratoire de Physique et d'Étude des Matériaux (UMR8213), CNRS – ESPCI Paris, PSL University – Sorbonne University , 10 rue Vauquelin, Paris, 75005, France

Abstract

Thin piezoelectric polymer films are used in increasingly more high frequency applications. However, they are not well characterized up to the gigahertz range. In this paper, polyvinylidene fluoride (PVDF) and polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE) films are mechanically and electrically characterized using the electro-acoustic reflectometry (EAR) method from 20 MHz to 2 GHz. In addition to mechanical and electrical properties, nonuniform poling is detected in the tested PVDF-TrFE samples showing a larger piezoelectric constant in the middle of the film and thus generating even and odd resonance modes.

Publisher

Acoustical Society of America (ASA)

Subject

Acoustics and Ultrasonics,Arts and Humanities (miscellaneous)

Link

https://pubs.aip.org/asa/jasa/article-pdf/153/4/2499/17007181/2499_1_10.0017927.pdf

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