Nanocomposites of ferroelectric polymers with TiO2 nanoparticles exhibiting significantly enhanced electrical energy density

Junjun Li; Sang Il Seok; Baojin Chu; Fatih Dogan; Qiming Zhang; Qing Wang

doi:10.1002/adma.200801106

Nanocomposites of ferroelectric polymers with TiO₂ nanoparticles exhibiting significantly enhanced electrical energy density

Junjun Li, Sang Il Seok, Baojin Chu, Fatih Dogan, Qiming Zhang, Qing Wang

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

477 Scopus citations

Abstract

A study was conducted to report high-energy-density polymer nanocomposites, based on surface-functionalized titanium dioxide (TiO₂) nanocrystals, as dopants in a ferroelectric poly(vinylidene fluoride-ter- trifluoroethylene-ter-chlorotrifluoroethylene) (P(VDF-TrEF-CTFE). It was demonstrated that the polymer matrix and TiO₂ filler possess similar dielectric permittivities of 42 and 47. The dielectric permittivities of the polymer matrix and TiO₂ filler were measured, using an inductance, capacitance, resistance meter at room temperature. High dielectric performance in the nanocomposites was realized through large enhancement in polarization response at high electric fields. Changes in polymer microstructure was also induced by the nanofillers. The dielectric permittivity of the nanoparticles was determined by impedance spectroscopy, using an appropriate equivalent circuit model.

Original language	English (US)
Pages (from-to)	217-221
Number of pages	5
Journal	Advanced Materials
Volume	21
Issue number	2
DOIs	https://doi.org/10.1002/adma.200801106
State	Published - Jan 12 2009

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.200801106

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title = "Nanocomposites of ferroelectric polymers with TiO2 nanoparticles exhibiting significantly enhanced electrical energy density",

abstract = "A study was conducted to report high-energy-density polymer nanocomposites, based on surface-functionalized titanium dioxide (TiO2) nanocrystals, as dopants in a ferroelectric poly(vinylidene fluoride-ter- trifluoroethylene-ter-chlorotrifluoroethylene) (P(VDF-TrEF-CTFE). It was demonstrated that the polymer matrix and TiO2 filler possess similar dielectric permittivities of 42 and 47. The dielectric permittivities of the polymer matrix and TiO2 filler were measured, using an inductance, capacitance, resistance meter at room temperature. High dielectric performance in the nanocomposites was realized through large enhancement in polarization response at high electric fields. Changes in polymer microstructure was also induced by the nanofillers. The dielectric permittivity of the nanoparticles was determined by impedance spectroscopy, using an appropriate equivalent circuit model.",

author = "Junjun Li and Seok, {Sang Il} and Baojin Chu and Fatih Dogan and Qiming Zhang and Qing Wang",

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T1 - Nanocomposites of ferroelectric polymers with TiO2 nanoparticles exhibiting significantly enhanced electrical energy density

AU - Li, Junjun

AU - Seok, Sang Il

AU - Chu, Baojin

AU - Dogan, Fatih

AU - Zhang, Qiming

AU - Wang, Qing

PY - 2009/1/12

Y1 - 2009/1/12

N2 - A study was conducted to report high-energy-density polymer nanocomposites, based on surface-functionalized titanium dioxide (TiO2) nanocrystals, as dopants in a ferroelectric poly(vinylidene fluoride-ter- trifluoroethylene-ter-chlorotrifluoroethylene) (P(VDF-TrEF-CTFE). It was demonstrated that the polymer matrix and TiO2 filler possess similar dielectric permittivities of 42 and 47. The dielectric permittivities of the polymer matrix and TiO2 filler were measured, using an inductance, capacitance, resistance meter at room temperature. High dielectric performance in the nanocomposites was realized through large enhancement in polarization response at high electric fields. Changes in polymer microstructure was also induced by the nanofillers. The dielectric permittivity of the nanoparticles was determined by impedance spectroscopy, using an appropriate equivalent circuit model.

AB - A study was conducted to report high-energy-density polymer nanocomposites, based on surface-functionalized titanium dioxide (TiO2) nanocrystals, as dopants in a ferroelectric poly(vinylidene fluoride-ter- trifluoroethylene-ter-chlorotrifluoroethylene) (P(VDF-TrEF-CTFE). It was demonstrated that the polymer matrix and TiO2 filler possess similar dielectric permittivities of 42 and 47. The dielectric permittivities of the polymer matrix and TiO2 filler were measured, using an inductance, capacitance, resistance meter at room temperature. High dielectric performance in the nanocomposites was realized through large enhancement in polarization response at high electric fields. Changes in polymer microstructure was also induced by the nanofillers. The dielectric permittivity of the nanoparticles was determined by impedance spectroscopy, using an appropriate equivalent circuit model.

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Nanocomposites of ferroelectric polymers with TiO₂ nanoparticles exhibiting significantly enhanced electrical energy density

Abstract

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