Title :
Method for determination of polarization decay in polarized polymer films
Author :
Rychkov, A.A. ; Gorokhovatsky, Y.A. ; Rychkov, D.A.
Author_Institution :
Dept. of Tech. Sci., Herzen State Pedagogical Univ. of Russia, St. Petersburg, Russia
Abstract :
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.
Keywords :
electrets; ferroelectric materials; polymer blends; polymer films; thermally stimulated currents; 290 K; charge storage; charge transport; polarization decay; polarization parameters; polarization relaxation kinetics; polarized polymer films; poled PVDF-PHFP films; polymer electrets; voltage recovery; Electrets; Ferroelectric materials; Isothermal processes; Kinetic theory; Optical materials; Optical polarization; Optical polymers; Optical sensors; Polymer films; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on
Print_ISBN :
0-7803-7725-7
DOI :
10.1109/ICPADM.2003.1218541
