期刊
APPLIED PHYSICS LETTERS
卷 102, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4795017
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资金
- National Science Foundation of China [61025002]
- National 973-project of China [2009CB623302]
Homogeneous ceramics-polymer nanocomposites comprising core-shell structured BaTiO3/SiO2 nanoparticles and a poly(vinylidene fluoride) polymer matrix have been prepared. The nanocomposite of 2 vol. % BaTiO3/SiO2 nanoparticles exhibits 46% reduced energy loss compared to that of BaTiO3 nanoparticles, and an energy density of 6.28 J/cm(3), under an applied electric field of 340 MV/m. Coating SiO2 layers on the surface of BaTiO3 nanoparticles significantly reduces the energy loss of the nanocomposites under high applied electric field via reducing the Maxwell-Wagner-Sillars interfacial polarization and space charge polarization. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4795017]
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