DocumentCode
1831045
Title
Dependence of the PVDF ferroelectric polarization on the electric field obtained by two methods
Author
Wisniewski, Célio ; Ferreira, G.F.Leal ; Araujo, W.M. ; Giacometti, JosC A.
Author_Institution
Inst. de Fisica de Sao Carlos, Sao Paulo Univ., Brazil
fYear
1999
fDate
1999
Firstpage
627
Lastpage
630
Abstract
We show that the dependence of ferroelectric polarization on the electric field in PVDF can be determined either using the constant current or a modified Sawyer-Tower technique. Measurements with and without polarization switching were performed and prior to each one the sample was short-circuited for several hours. The results compare very well and the small difference was attributed to the existence of a delayed polarization which is not accounted for in the calculation
Keywords
dielectric hysteresis; dielectric polarisation; ferroelectric materials; polymers; PVDF; constant current method; electric field dependence; ferroelectric polarization; modified Sawyer-Tower technique; polarization switching; Current measurement; Electric variables measurement; Electrodes; Ferroelectric materials; Hysteresis; Performance evaluation; Polarization; Polymers; Time measurement; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrets, 1999. ISE 10. Proceedings. 10th International Symposium on
Conference_Location
Athens
Print_ISBN
0-7803-5025-1
Type
conf
DOI
10.1109/ISE.1999.832124
Filename
832124
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