Electrical conductivity effects in polyethylene terephthalate films

Neagu, E; Pissis, P; Apekis, L

dc.contributor.author	Neagu, E	en
dc.contributor.author	Pissis, P	en
dc.contributor.author	Apekis, L	en
dc.date.accessioned	2014-03-01T01:49:52Z
dc.date.available	2014-03-01T01:49:52Z
dc.date.issued	2000	en
dc.identifier.issn	0021-8979	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/25946
dc.subject.classification	Physics, Applied	en
dc.subject.other	THERMALLY STIMULATED CURRENT	en
dc.subject.other	SPACE-CHARGE FORMATION	en
dc.subject.other	DIELECTRIC-RELAXATION SPECTROSCOPY	en
dc.subject.other	SEMICRYSTALLINE POLY(ETHYLENE-TEREPHTHALATE)	en
dc.subject.other	METAL SYSTEMS	en
dc.subject.other	COMPOSITIONAL CONTRIBUTIONS	en
dc.subject.other	GLASS-TRANSITION	en
dc.subject.other	HEAT-TREATMENTS	en
dc.subject.other	MOBILE IONS	en
dc.subject.other	PET FILMS	en
dc.title	Electrical conductivity effects in polyethylene terephthalate films	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	Electrical conductivity effects in biaxially stretched polyethylene terephthalate (PET) films of 6 mu m thickness and 68% degree of crystallinity were investigated by means of dielectric relaxation spectroscopy in the frequency range 10(-2)-10(6) Hz and at temperatures higher than the glass transition temperature (similar to 85 degrees C) up to 190 degrees C. The formalisms of complex permittivity, electric modulus, and impedance were employed to analyze the experimental data. The results are discussed in terms of dc conductivity, conductivity current relaxation, interfacial Maxwell-Wagner-Sillars polarization, rho peak, space-charge polarization, and electrode polarization. They are compared with the predictions of models for the electrical and dielectric properties of ion-conducting polymers. The dc conductivity values determined from dc measurement, from ac conductivity plots and from complex impedance plots agree well with each other. Their temperature dependence is described by the Vogel-Tammann-Fulcher equation and classifies PET as a fragile system. (C) 2000 American Institute of Physics. [S0021-8979(00)01206-8].	en
heal.publisher	AMER INST PHYSICS	en
heal.journalName	JOURNAL OF APPLIED PHYSICS	en
dc.identifier.isi	ISI:000085531400038	en
dc.identifier.volume	87	en
dc.identifier.issue	6	en
dc.identifier.spage	2914	en
dc.identifier.epage	2922	en