Monomer Derived Poly(Furfuryl)/BaTiO3 0-3 Nanocomposite Capacitors: Maximization of the Effective Permittivity Through Control at the Interface

ACS Applied Materials & Interfaces
Frederick A PearsallStephen O'Brien

Abstract

Frequency stable, high permittivity nanocomposite capacitors produced under mild processing conditions offer an attractive replacement to MLCCs derived from conventional ceramic firing. Here, 0-3 nanocomposites were prepared using gel-collection derived barium titanate nanocrystals, suspended in a poly(furfuryl alcohol) matrix, resulting in a stable, high effective permittivity, low loss dielectric. The nanocrystals are produced at 60 °C, emerging as fully crystallized cubic BTO, 8 nm, paraelectric with a highly functional surface that enables both suspension and chemical reaction in organic solvents. The nanocrystals were suspended in furfuryl alcohol inside a uniquely prepared mold, in which volume fraction of nanocrystal filler (νf) could be varied. Polymerization of the matrix in situ at 70-90 °C resulted in a nanocomposite with a higher than anticipated effective permittivity (up to 50, with νf only 0.41, 0.5-2000 kHz), exceptional stability as a function of frequency, and very favorable dissipation factors (tan δ < 0.01, νf < 0.41; tan δ < 0.05, νf < 0.5). The increased permittivity is attributed to the covalent attachment of the poly(furfuryl alcohol) matrix to the surface of the nanocrystals, homogenizing the particle-m...Continue Reading

References

May 9, 2008·Journal of the American Chemical Society·Millicent B SmithMichael L Steigerwald
Oct 30, 2009·International Journal of Molecular Sciences·Margarita García-HernándezDamien Boyer
Sep 17, 2010·Nanoscale·Kyoichi FujinamiKunihito Koumoto
Feb 5, 2014·ACS Applied Materials & Interfaces·Sergio A PaniaguaSeth R Marder
Dec 4, 2015·ACS Applied Materials & Interfaces·Michael D ToomeyJohn A Howarter
Apr 28, 2016·Polymers·Ilona PleşaMichael Muhr

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Citations

Jul 5, 2019·Chemical Society Reviews·Hang LuoChaoying Wan
Jul 23, 2018·Journal of Colloid and Interface Science·Dimitrios A GiannakoudakisTeresa J Bandosz
Nov 21, 2019·ACS Applied Materials & Interfaces·Haibo ZhangZuo-Guang Ye

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