Polarization and Hysteresis in Tubular-Channel Fluoroethylenepropylene-Copolymer Ferroelectrets
- Polarization-vs.-applied-voltage hysteresis curves are recorded on tubular-channel fluoroethylene-propylene (FEP) copolymer ferroelectrets by means of a modified Sawyer-Tower circuit. Dielectric barrier discharges (DBDs) inside the cavities are triggered when the applied voltage is sufficiently high. During the DBDs, the cavities become man-made macroscopic dipoles which build up an effective polarization in the ferroelectret. Therefore, a phenomenological hysteresis curve is observed. From the hysteresis loop, the remanent polarization and the coercive field can be determined. Furthermore, the polarization can be related to the respective piezoelectric coefficient of the ferroelectret. The proposed method is easy to implement and is useful for characterization, further development and optimization of ferro- or piezoelectrets.
Author details: | Xunlin QiuORCiDGND, Werner WirgesORCiD, Reimund GerhardORCiDGND |
---|---|
DOI: | https://doi.org/10.1080/00150193.2014.964603 |
ISSN: | 0015-0193 |
ISSN: | 1563-5112 |
Title of parent work (English): | Ferroelectrics |
Publisher: | Routledge, Taylor & Francis Group |
Place of publishing: | Abingdon |
Publication type: | Article |
Language: | English |
Year of first publication: | 2014 |
Publication year: | 2014 |
Release date: | 2017/03/27 |
Tag: | Ferroelectrets; dielectric barrier discharge (DBD); fluoroethylenepropylene (FEP) copolymer; piezoelectrets; piezoelectricity-polarization relation; tubular-channel polymer systems |
Volume: | 472 |
Issue: | 1 |
Number of pages: | 10 |
First page: | 100 |
Last Page: | 109 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
Peer review: | Referiert |