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The novel voltage recovery technique is used for analysis of charge storage and transport in polymer electrets. We have shown that there is an opportunity to discriminate between real charge decay and polarization relaxation. This method enabled us to determine polarization relaxation kinetics in poled P(VDF-HFP) films. It has been shown that time interval of polarization relaxation comprises more than five decades at 290 K. Using appropriate analysis and experimental results we have determined real charge and polarization parameters.

Nachhaltig F: Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen S: TSZ Weißenburg

Beitrag (Sammelband oder Tagungsband)

Y. Gorokhovatsky, Dmitry Rychkov, Semikhin Y.A.

Determination of frequency factor and activation energy distributions in copolymer of vinylidenefluoride with hexafluoropropylene

Proceedings of the International Conference “Young Scientists 2002"

2002

Nachhaltig F: Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen S: TSZ Weißenburg

Beitrag (Sammelband oder Tagungsband)

Y. Gorokhovatsky, V. Boitzov, Dmitry Rychkov

Thermal stability of polarization structures in corona-charged P(VDF-HFP) copolymers films

Proceedings of the 11th International Symposium on Electrets (ISE-11)

2002

DOI: 10.1109/ISE.2002.1042962

Abstract anzeigen

The trapping of charge carriers in localized states on the surface of /spl beta/-crystallites in P(VDF-HFP) films has been studied by means of a novel voltage recovery technique. It has been found that a phase transition from /spl alpha/-non polar to the /spl delta/-polar configuration takes place under the process of charge injection. Using experimental measurements and appropriate analysis, we determine the energy distribution of the traps located near the /spl beta/-crystallites surfaces, and estimate the spatial dimensions of the molecular dipoles to be about 11-12 nm. The industrial application method was suggested in order to improve the thermal stability of charge and polarization in corona-charged copolymer films.

Nachhaltig F: Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen S: TSZ Weißenburg

Beitrag (Sammelband oder Tagungsband)

Dmitry Rychkov, Y. Gorokhovatsky

Polarization relaxation kinetics determination by thermally stimulated surface voltage recovery method

Proceedings of the International Conference "Physics of semiconductors"

2002

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Suche nach „[Y.] [Gorokhovatsky]“ hat 8 Publikationen gefunden

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