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Dielectric Properties Of Copper-phthalocyanine Polymer

H. Nalwa, L. Dalton, P. Vasudevan
Published 1985 · Materials Science

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Abstract Dielectric properties of a sheet-like polymer of copper-phthalocyanine have been studied. Dielectric constant and dielectric loss of the compressed pellets of the samples were measured at 1, 5 and 10 kHz in the temperature range 30–240°. Dielectric constant and dielectric loss are frequency and temperature dependent. The dielectric constants recorded at the elevated temperature corresponding to the dielectric maxima were in the range of 10 5 . Anomalous dielectric behaviour of highly conjugated copper-phthalocyanine polymer at low frequencies and high temperatures seems to arise from Maxwell-Wagner-Sillars polarization. It has been found that the structural changes occurring in the phthalocyanine macrocycle strongly affect the dielectric parameters. Heating of the unpolarized sample gives rise to spontaneous currents, indicating the presence of ferroelectric polarization.
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K. J. Pawlowski (2004)
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J. Xu (2006)
10.1038/nature00984
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J. Murray (2002)
10.1038/PJ.2013.101
Enhanced dielectric behavior in nanocomposites of polyurethane bonded with copper phthalocyanine oligomers
J. Wang (2014)
10.1016/B978-012513905-2/50010-8
Metallophthalocyanines as High-Dielectric Constant Materials
Neelam Phougat (1999)
10.1080/10584587.2019.1668696
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Amita Rani (2019)
10.1007/s00289-013-0923-2
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J. Wang (2013)
10.1103/PHYSREVB.71.041202
Intrinsic dielectric properties and charge transport in oligomers of organic semiconductor copper phthalocyanine
V. Bobnar (2005)
10.1002/PAT.3289
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J. Wang (2014)
10.1002/POLB.21910
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J. Wang (2010)
10.1039/C4TA04197F
Separated-structured all-organic dielectric elastomer with large actuation strain under ultra-low voltage and high mechanical strength
M. Tian (2015)
10.1541/IEEJFMS.126.1153
Advanced Dielectrics for Capacitors
Qi Tan (2006)
Organic Solar Cells Based on High Dielectric Constant Materials: An Approach to Increase Efficiency
Khalil J. Hamam (2013)
10.1002/POLB.21720
Circuit simulation for the dielectric responses of the composites of copper phthalocyanine oligomers and sulfonated polyurethanes by separating the structural elements
J. Zhang (2009)
10.1039/C7TC03169F
Synthesis and properties of a high dielectric constant copolymer of a copper phthalocyanine oligomer grafted to amino-capped polyimide
L. Chen (2017)
10.1002/MARC.200800022
Ferroelectric Polymer Nanotubes with Large Dielectric Constants for Potential All‐Organic Electronic Devices
C. Wang (2008)
10.1109/ICSD.1989.69181
Electrical properties of some cobalt phthalocyanines
Neelam Mann (1989)
10.2494/PHOTOPOLYMER.18.297
High Dielectric Ceramic Nano Particle and Polymer Composites for Embedded Capacitor
A. Takahashi (2005)
10.1117/12.484308
Poly(vinylidene-fluoride-trifluoroethylene) based high-performance electroactive polymers
F. Xia (2003)
10.1109/ISE.2002.1042975
Poly(vinylidene fluoroethylene-trifluoroethylene) based high performance electroactive polymers
Q. Zhang (2002)
10.1007/BF02652108
The effect of central metal atom on the electrical properties of phthalocyanine macromolecule
H. Nalwa (1988)
10.1002/POLB.23554
Achieving high electric energy storage in a polymer nanocomposite at low filling ratios using a highly polarizable phthalocyanine interphase
J. Wang (2014)
10.1117/12.815790
Phthalocyanine and encapsulated polyaniline nanoparticles as fillers for dielectric elastomers
Dorina M. Opris (2009)
10.1063/1.2209197
Polarizability of phthalocyanine based molecular systems : A first-principles electronic structure study
R. Ramprasad (2006)
10.1080/15321799108021957
RECENT DEVELOPMENTS IN FERROELECTRIC POLYMERS
H. Nalwa (1991)
10.1007/S00289-008-0897-7
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Y. Wang (2008)
10.1541/IEEJFMS.126.1160
Polymer-Ceramic Nanocomposites Based on New Concepts for Embedded Capacitor
A. Takahashi (2006)
10.1007/S11664-011-1699-5
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X. Zhao (2011)
10.1016/J.PHYSB.2016.03.035
Ac-conductivity and dielectric response of new zinc-phosphate glass/metal composites
A. Maaroufi (2016)
10.1088/2053-1591/AA7F5E
Dielectric response of branched copper phthalocyanine
Khalil J. Hamam (2017)
10.1039/C2RA21634E
Monomeric, not tetrameric species are responsible for the colossal dielectric constant of copper phthalocyanine derived from pyromellitic dianhydride
Gellert Mezei (2012)
10.1038/nature01021
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