DocumentCode
2375913
Title
Properties of PP-PS double layer electrets
Author
Kacprzyk, Ryszard ; Motyl, Edmund
Author_Institution
Inst. of Electr. Eng., Tech. Univ. Wroclaw, Poland
fYear
1994
fDate
7-9 Sep 1994
Firstpage
703
Lastpage
708
Abstract
A simplified analysis of the double layer electret with a frozen space charge leads to a conclusion that such a structure can show a piezo-effect in case of difference in elasticity coefficients of both layers. Results of the experiments carried out on the PP-PS foil electrets confirmed that the value of piezoelectric coefficient can be comparable to that of PVDF films. Investigation of the TSD current has shown that the charge storage properties of the structure are mainly determined by the properties of the PP layer
Keywords
electrets; piezoelectric materials; piezoelectric thin films; polymer films; space charge; thermally stimulated currents; PP-PS double layer electrets; TSD current; charge storage properties; elasticity coefficients; frozen space charge; piezoelectric coefficient; polypropylene-polystyrene electret; Dielectrics; Elasticity; Electrets; Electrodes; Mechanical factors; Piezoelectric films; Polarization; Space charge; Stress; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location
Paris
Print_ISBN
0-7803-1940-0
Type
conf
DOI
10.1109/ISE.1994.515214
Filename
515214
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