Distinctive Contributions from Organic Filler and Relaxorlike Polymer Matrix to Dielectric Response of CuPc-P(VDF-TrFE-CFE) Composite

V. Bobnar; A. Levstik; C. Huang; Q. M. Zhang

doi:10.1103/PhysRevLett.92.047604

Distinctive Contributions from Organic Filler and Relaxorlike Polymer Matrix to Dielectric Response of CuPc-P(VDF-TrFE-CFE) Composite

V. Bobnar, A. Levstik, C. Huang, Q. M. Zhang

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The dielectric response of copper-phthalocyanine (CuPc) oligomers embedded in a poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) terpolymer matrix was studied. Although admixture of CuPc strongly increases the dielectric constant of the terpolymer at all temperatures, each of the two constituents determines the dielectric dynamics in a different temperature region—the relaxorlike matrix above and CuPc below the terpolymer’s freezing temperature. Two relaxations, reflecting the charge carriers’ response in CuPc, were detected. Results on ac conductivity reveal that the tunneling of polarons is the dominating charge transport mechanism.

Original language	English (US)
Pages (from-to)	4
Number of pages	1
Journal	Physical review letters
Volume	92
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.92.047604
State	Published - 2004

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.92.047604

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title = "Distinctive Contributions from Organic Filler and Relaxorlike Polymer Matrix to Dielectric Response of CuPc-P(VDF-TrFE-CFE) Composite",

abstract = "The dielectric response of copper-phthalocyanine (CuPc) oligomers embedded in a poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) terpolymer matrix was studied. Although admixture of CuPc strongly increases the dielectric constant of the terpolymer at all temperatures, each of the two constituents determines the dielectric dynamics in a different temperature region—the relaxorlike matrix above and CuPc below the terpolymer{\textquoteright}s freezing temperature. Two relaxations, reflecting the charge carriers{\textquoteright} response in CuPc, were detected. Results on ac conductivity reveal that the tunneling of polarons is the dominating charge transport mechanism.",

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AU - Huang, C.

AU - Zhang, Q. M.

PY - 2004

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N2 - The dielectric response of copper-phthalocyanine (CuPc) oligomers embedded in a poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) terpolymer matrix was studied. Although admixture of CuPc strongly increases the dielectric constant of the terpolymer at all temperatures, each of the two constituents determines the dielectric dynamics in a different temperature region—the relaxorlike matrix above and CuPc below the terpolymer’s freezing temperature. Two relaxations, reflecting the charge carriers’ response in CuPc, were detected. Results on ac conductivity reveal that the tunneling of polarons is the dominating charge transport mechanism.

AB - The dielectric response of copper-phthalocyanine (CuPc) oligomers embedded in a poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) terpolymer matrix was studied. Although admixture of CuPc strongly increases the dielectric constant of the terpolymer at all temperatures, each of the two constituents determines the dielectric dynamics in a different temperature region—the relaxorlike matrix above and CuPc below the terpolymer’s freezing temperature. Two relaxations, reflecting the charge carriers’ response in CuPc, were detected. Results on ac conductivity reveal that the tunneling of polarons is the dominating charge transport mechanism.

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Distinctive Contributions from Organic Filler and Relaxorlike Polymer Matrix to Dielectric Response of CuPc-P(VDF-TrFE-CFE) Composite

Abstract

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