Electrical conductivity and dielectric properties of SiO 2 nanoparticles dispersed in conducting polymer matrix
作者： Kousik Dutta , SK De , None
DOI: 10.1007/S11051-006-9184-4
关键词: Conductivity 、 Dielectric 、 Grain size 、 Materials science 、 Permittivity 、 High-κ dielectric 、 Composite material 、 Grain boundary 、 Atmospheric temperature range 、 Polypyrrole
摘要: Electrical and dielectric properties of conducting polypyrrole–wide band gap silica (PPY–SiO2) nanocomposites have been investigated as a function temperature frequency for different concentrations polypyrrole. The average grain size the is in range 40–80 nm. Impedance spectra reveal two distorted semicircles corresponding to boundary effects. magnitude conductivity its variation are significantly from polypyrrole silica. A very large constant about 4800 at 30 kHz room has observed highest concentration Inhomogeneous behavior gives rise high constant.
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