Dielectrophoresis Structurization of PZT/PDMS Micro-Composite for Elastronic Function: Towards Dielectric and Piezoelectric Enhancement

Piezoelectric materials have been used for decades in the field of sensors as transducers and energy harvesters. Among these, piezoelectric composites are emerging being extremely advantageous in terms of production, costs, and versatility. However, the piezoelectric performances of a composite with...

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Published inMaterials Vol. 14; no. 15; p. 4071
Main Authors D’Ambrogio, Giulia, Zahhaf, Omar, Le, Minh-Quyen, Capsal, Jean-Fabien, Cottinet, Pierre-Jean
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2021
MDPI
Subjects
1–3 connectivity
Columns (structural)
Composite materials
Connectivity
Curing
Dielectrophoresis
Electric fields
Electroactive polymers
Energy harvesting
Engineering Sciences
ferroelectric composites
Ferroelectricity
Fillers
health monitoring
High temperature
Lead zirconate titanates
piezoelectric sensor
Piezoelectricity
Polydimethylsiloxane
Polymers
Scanning electron microscopy
Sensors
smart materials
Transducers
United States > US
dielectrophoresis
1–3 connectivity
ferroelectric composites
health monitoring
smart materials
piezoelectric sensor
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Summary:Piezoelectric materials have been used for decades in the field of sensors as transducers and energy harvesters. Among these, piezoelectric composites are emerging being extremely advantageous in terms of production, costs, and versatility. However, the piezoelectric performances of a composite with randomly dispersed filler are not comparable with bulk ferroelectric ceramics and electroactive polymers. In order to achieve highly performing and low-cost materials, this work aims to develop flexible composites made of Lead zirconate titanate (PZT) filler in Polydimethylsiloxane (PDMS) matrix, with a specific internal structure called quasi-1–3 connectivity. Such a structure, comprising particles arranged in columns along a preferred direction, is performed through dielectrophoresis by applying an alternating electric field on the composite before and during the polymerization. The developed flexible material could be introduced into complex structures in various application fields, as sensors for structural monitoring.
Bibliography:ObjectType-Article-1
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PMCID: PMC8346992
ISSN:1996-1944
1996-1944
DOI:10.3390/ma14154071