TY - JOUR
T1 - Dielectric relaxation study in electron-irradiated ferroelectric poly(vinylidene fluoride-trifluoroethylene) (80/20 mol%) copolymer
AU - Guo, S. S.
AU - Lu, S. G.
AU - Xu, Z. K.
AU - Zhao, X. Z.
PY - 2005/11/1
Y1 - 2005/11/1
N2 - The relaxor ferroelectric (RFE) behavior in high-energy electron-irradiated poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] 80/20 mol % copolymer system is characterized over a broad frequency and temperature range. The dielectric properties remarkably vary with the irradiated dose in terms of the change from normal ferroelectric (FE) to RFE phase. During the RFE-paraelectric (PE) transition, the dielectric constants, as a function of temperature, can be described by the Vogel-Fulcher (V-F) relation. It has been found that the relationship between the real and imaginary part of dielectric constant in irradiated copolymer can be well fitted with modified Cole-Cole equation and Debye relaxation equation, exhibiting similar features as inorganic RFEs. © 2006 Wiley Periodicals, Inc.
AB - The relaxor ferroelectric (RFE) behavior in high-energy electron-irradiated poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] 80/20 mol % copolymer system is characterized over a broad frequency and temperature range. The dielectric properties remarkably vary with the irradiated dose in terms of the change from normal ferroelectric (FE) to RFE phase. During the RFE-paraelectric (PE) transition, the dielectric constants, as a function of temperature, can be described by the Vogel-Fulcher (V-F) relation. It has been found that the relationship between the real and imaginary part of dielectric constant in irradiated copolymer can be well fitted with modified Cole-Cole equation and Debye relaxation equation, exhibiting similar features as inorganic RFEs. © 2006 Wiley Periodicals, Inc.
KW - Dielectric relaxation
KW - Electron irradiation
KW - Poly(vinylidene fluoride-trifluoro ethylene) [P(VDF-TrFE)]
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-27844497058&origin=recordpage
U2 - 10.1002/polb.20584
DO - 10.1002/polb.20584
M3 - RGC 21 - Publication in refereed journal
SN - 0887-6266
VL - 43
SP - 2972
EP - 2980
JO - Journal of Polymer Science, Part B: Polymer Physics
JF - Journal of Polymer Science, Part B: Polymer Physics
IS - 21
ER -