Bubble Electret-Elastomer Piezoelectric Transducer

Ryszard Kacprzyk and Agnieszka Mirkowska
Additional contact information
Ryszard Kacprzyk: Department of Electrical Engineering Fundamentals, Wroclaw University of Science and Technology, 50-377 Wroclaw, Poland
Agnieszka Mirkowska: Department of Electrical Engineering Fundamentals, Wroclaw University of Science and Technology, 50-377 Wroclaw, Poland

Energies, 2020, vol. 13, issue 11, 1-11

Abstract: Ferroelectret-based piezoelectric transducers are, nowadays, commonly used in energy harvesting applications due to their high piezoelectric activity. Unfortunately, the processing properties of such materials are limited, and new solutions are sought. This paper presents a new solution of a piezoelectric transducer containing electret bubbles immersed in an elastomer matrix. Application of a gas-filled dielectric bubble as the fundamental cell of the piezo-active structure is discussed. A simplified model of the structure, containing electret thin-wall bubbles and elastomer dielectric filling, was applied to determine the value of the piezoelectric coefficient, d 33 . An exemplary structure containing piezo-active bubbles, made of an electret material, immersed in an elastomer filling is presented. The influence of the mechanical and electrical properties of particular components on the structure piezoelectric properties are experimentally examined and confirmed. The quasi-static method was used to measure the piezoelectric coefficient, d 33 . The separation of requirements related to the mechanical and electrical properties of the transducer is discussed.

Keywords: dielectric composites; dielectrics; energy harvester; ferroelectrets; piezoelectrets; piezoelectric materials (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/11/2884/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/11/2884/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:11:p:2884-:d:367559

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().