Monomer Derived Poly(Furfuryl)/BaTiO3 0–3 Nanocomposite Capacitors: Maximization of the Effective Permittivity Through Control at the Interface
| Autor: | Frederick A. Pearsall, Stephen O'Brien, Julien Lombardi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Permittivity
Materials science Nanocomposite 02 engineering and technology Dielectric 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Furfuryl alcohol chemistry.chemical_compound chemistry Polymerization Nanocrystal visual_art Barium titanate visual_art.visual_art_medium General Materials Science Ceramic Composite material 0210 nano-technology |
| Zdroj: | ACS Applied Materials & Interfaces. 9:40324-40332 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.7b13879 |
| Popis: | 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 ... |
| Databáze: | OpenAIRE |
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