DocumentCode
3362947
Title
Evolution of electret applications
Author
Lewiner, Jacques
Author_Institution
Lab. d´´Electr. Generale, Ecole Superieure de Phys. et de Chimie Ind., Paris, France
fYear
1996
fDate
25-30 Sep 1996
Firstpage
1043
Abstract
Charge storage or polarization phenomena in dielectrics can be associated with two types of effects. Indeed, a frozen polarization or trapped charges can either induce internal effects or create an external electric field. In the first case, the physical properties of the material can be modified leading for instance to piezoelectricity or to nonlinear effects. In the second case, an external electric field of large magnitude can be created. The author recalls the evolution which took place for both types of electrets and associated applications
Keywords
dielectric polarisation; electrets; piezoelectricity; charge storage; dielectrics; electret applications; external electric field; frozen polarization; internal effects; nonlinear effects; piezoelectricity; polarization phenomena; trapped charges; Conducting materials; Dielectric materials; Electrets; Material storage; Mechanical factors; Microphones; Piezoelectric materials; Piezoelectric polarization; Plastics industry; Polymers;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrets, 1996. (ISE 9), 9th International Symposium on
Conference_Location
Shanghai
Print_ISBN
0-7803-2695-4
Type
conf
DOI
10.1109/ISE.1996.578255
Filename
578255
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