Frequency and voltage dependence dielectric properties, ac electrical conductivity and electric modulus profiles in Al/Co 3 O 4 -PVA/p-Si structures

2016 ◽  
Vol 500 ◽  
pp. 154-160 ◽  
Author(s):  
Çiğdem Bilkan ◽  
Yashar Azizian-Kalandaragh ◽  
Şemsettin Altındal ◽  
Roya Shokrani-Havigh
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Properties ◽  
Electric Modulus ◽  
Voltage Dependence ◽  
Ac Electrical Conductivity ◽  
Frequency And Voltage Dependence

scholarly journals Novel Pressure Sensors Made from Nanocomposites (Biodegradable Polymers–Metal Oxide Nanoparticles): Fabrication and Characterization

2018 ◽  
Vol 63 (8) ◽  
pp. 754 ◽  
Author(s):  
A. Hashim ◽  
A. Hadi
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Properties ◽  
Low Cost ◽  
Metal Oxide Nanoparticles ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Oxide Nanoparticles ◽  
Ac Electrical Conductivity ◽  
Dc Electrical Conductivity ◽  
Pressure Sensitive

This paper aims to the preparation of novel pressure-sensitive nanocomposites with low cost, light weight, and good sensitivity. The nanocomposites of polyvinyl alcohol, polyacrylic acid, and lead oxide nanoparticles have been investigated. The dielectric properties and dc electrical conductivity of (PVA–PAA–PbO2) nanocomposites have been studied. The dielectric properties of nanocomposites were measured in the frequency range (100 Hz–5 MHz). The experimental results showed that the dielectric constant and dielectric loss of (PVA–PAA–PbO2) nanocomposites decrease, as the frequency increases, and they increase with the concentrations of PbO2 nanoparticles. The ac electrical conductivity of (PVA–PAA–PbO2) nanocomposites increases with the frequency and the concentrations of PbO2 nanoparticles. The dc electrical conductivity of (PVA–PAA–PbO2) nanocomposites also increases with the concentrations of PbO2 nanoparticles. The application of pressure-sensitive nanocomposites has been examined in the pressure interval (60–200) bar. The results showed that the electrical resistance of (PVA–PAA–PbO2) pressure-sensitive nanocomposites decreases, as the compressive stress increases. The (PVA–PAA–PbO2) nanocomposites have high sensitivity to pressure.

AC electrical conductivity and dielectric properties of doping induced molecular ferroelectric diisopropylammonium bromide

2019 ◽  
Vol 6 (9) ◽  
pp. 096306
Author(s):  
Ekramul Kabir ◽  
M Khatun ◽  
Raihan J Mustafa ◽  
Kiran Singh ◽  
Muklesur Rahman
Keyword(s):  
Electrical Conductivity ◽  
Dielectric Properties ◽  
Ac Electrical Conductivity
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