Size-dependent low-frequency dielectric properties in the BaTiO3/poly(vinylidene fluoride) nanocomposite films

被引：85

作者：

Fan, Ben-Hui ^{[1
]}

Zha, Jun-Wei ^{[2
]}

Wang, Dongrui ^{[2
]}

Zhao, Jun ^{[2
]}

Dang, Zhi-Min ^{[1
,2
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Dept Polymer Sci & Engn, Beijing 100083, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 01期

关键词：

COMPOSITE; CAPACITOR; CONSTANT;

D O I：

10.1063/1.3673555

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Effects of inorganic nanoparticles size and thermal agitation on dielectric properties of BaTiO3/poly(vinylidene fluoride) (BT/PVDF) nanocomposite films at low frequency were studied. The dielectric properties of the BT/PVDF nanocomposite films with three kinds of diameters of BT nanoparticles loading at 50 vol. % were studied in a wide frequency range from 10(-2) Hz to 10(7) Hz by two measured processes. A significant low-frequency dielectric permittivity increase and the difference in dielectric properties between two measured processes were discussed. Interfacial polarization, crystal phase effect, and thermal agitation are considered to analyze the significant increase and difference in dielectric behaviors. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3673555]

引用

页数：4

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