NDLI: Spontaneous electrical current in P(VDF/TrFE) copolymer

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Spontaneous electrical current in P(VDF/TrFE) copolymer

Content Provider	IEEE Xplore Digital Library
Author	Guimaraes Neto, J.M. Faria, R.M.
Copyright Year	1994
Description	Author affiliation: Dept. de Fisica, UFPI, Teresina, Brazil (Guimaraes Neto, J.M.; Faria, R.M.)
Abstract	Short-circuit electrical currents were observed in 60:40 mol% P(VDF/TrFE) copolymers above 80/spl deg/C, temperature in which this polymer undergoes a structural ferro-to-paraelectric phase transition. The signal of this current was inverted when the sample is rotated so that the electrodes had their positions exchanged. Different combinations of metallic materials (aluminium, copper, nickel, and gold) were used as electrodes in metal(1)-polymer-metal(2) structures. Voltage signals were also detected in paraelectric samples, whose signal was equally dependent on the electrode combinations. This phenomenon is probably due to an electromotive force arising from different interfacial potential on both metal-sample interfaces.
Starting Page	685
Ending Page	689
File Size	216341
Page Count	5
File Format	PDF
ISBN	0780319400
DOI	10.1109/ISE.1994.515211
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-09-07
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Temperature Polymers Inorganic materials Aluminum Copper Nickel Gold Voltage Signal detection
Content Type	Text
Resource Type	Article

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