Dielectric behavior and ac conductivity study of NiO∕ Al2O3 nanocomposites in humid atmosphere
MM Ahmad, SA Makhlouf, K Khalil - Journal of applied physics, 2006 - pubs.aip.org
Humidity sensing characteristics of Ni O∕ Al 2 O 3 nanocomposites, prepared by sol-gel
method, are studied by impedance spectroscopy. Modeling of the obtained impedance
spectra with an appropriate equivalent circuit enables us to separate the electrical
responses of the tightly bound chemisorbed water molecules on the grain surfaces and the
loosely associated physisorbed water layers. Dependence of the dielectric properties and ac
conductivity of the nanocomposites on relative humidity (RH) were studied as a function of …
method, are studied by impedance spectroscopy. Modeling of the obtained impedance
spectra with an appropriate equivalent circuit enables us to separate the electrical
responses of the tightly bound chemisorbed water molecules on the grain surfaces and the
loosely associated physisorbed water layers. Dependence of the dielectric properties and ac
conductivity of the nanocomposites on relative humidity (RH) were studied as a function of …
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