11 March 2003 Ferroelectric-like behavior in nonpolar cellular electrets
Author Affiliations +
Proceedings Volume 4946, Transducing Materials and Devices; (2003) https://doi.org/10.1117/12.468257
Event: Photonics Fabrication Europe, 2002, Bruges, Belgium
Cellular space-charge electrets have emerged as a new class of materials for electromechanical devices, offering a huge potential for applications in noise reduction or cancellation, non-intrusive surveillance, advanced monitoring in health care, as well as in non-destructive testing. Here we report on piezoelectric responses in sandwich structures of two dielectric films separated by an air-gap of a few micrometer thickness. The sandwich structure is charged by dielectric barrier microdischarges within the air-gap. Wide ranging similarities to ferroelectric materials are demonstrated, like hysteresis loops in the dielectric and electromechanical properties versus applied voltage. Applications may emerge in electrostatic microelectromechanical devices.
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Michael Lindner, Michael Lindner, Simona Bauer-Gogonea, Simona Bauer-Gogonea, Siegfried Bauer, Siegfried Bauer, } "Ferroelectric-like behavior in nonpolar cellular electrets", Proc. SPIE 4946, Transducing Materials and Devices, (11 March 2003); doi: 10.1117/12.468257; https://doi.org/10.1117/12.468257

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