Low percolation threshold and enhanced electrical and dielectric properties of graphite powder/poly (vinyl alcohol) composites

2017 ◽  
Vol 39 (12) ◽  
pp. 4400-4407 ◽  
Author(s):  
Debabrata Bhadra
Keyword(s):  
Dielectric Properties ◽  
Percolation Threshold ◽  
Vinyl Alcohol ◽  
Graphite Powder ◽  
Poly Vinyl Alcohol ◽  
Electrical And Dielectric Properties

Electrical and dielectric properties of poly(vinyl alcohol)/starch/graphene nanocomposites

2017 ◽  
Vol 96 (4) ◽  
pp. 903-911 ◽  
Author(s):  
Osamah A. Bin-Dahman ◽  
Mostafizur Rahaman ◽  
Dipak Khastgir ◽  
Mamdouh A. Al-Harthi
Keyword(s):  
Dielectric Properties ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Graphene Nanocomposites ◽  
Electrical And Dielectric Properties

Electrical and dielectric properties of Au/1% graphene (GP)+Ca1.9Pr0.1Co4Ox doped poly(vinyl alcohol)/n-Si structures as function of temperature and voltage

2015 ◽  
Vol 93 (10) ◽  
pp. 1213-1220 ◽  
Author(s):  
H.G. Çetinkaya ◽  
A. Kaya ◽  
Ş. Altındal ◽  
S. Koçyiğit
Keyword(s):  
Dielectric Properties ◽  
Vinyl Alcohol ◽  
Peak Position ◽  
Poly Vinyl Alcohol ◽  
Applied Bias Voltage ◽  
Distribution Profile ◽  
Dielectric Parameters ◽  
Layer Width ◽  
Electrical And Dielectric Properties ◽  
Increasing Temperature

Electrical and dielectric properties of Au/1% graphene (GP)+Ca1.9Pr0.1Co4Ox doped poly(vinyl alcohol)/n-Si structures have been investigated using the admittance spectroscopy method in the temperature and voltage ranges of 160–300 K and –4 – 5 V, respectively. Experimental results show that both the main electrical and dielectric parameters, such as barrier height (Φb), depletion layer width (Wd), series resistance (Rs) of structure, real and imaginary parts of dielectric constant (ε′, ε″) and electric modulus (M′ and M″), tanδ, and AC conductivity (σac) were found to be strong functions of temperature and applied bias voltage. M′ and M″ versus V plots have a peak at about 1 V. While the peak position shifted towards negative biases, the magnitude of the peak decreases with increasing temperature. Such peak behavior in M′ and M″ can be attributed to the existence of particular density distribution profile interface states at the interfacial layer–n-Si interface and their reordering and restructure under external electric field and interface polarization. These peaks also indicated that the Au/1% GP+Ca1.9Pr0.1Co4Ox doped poly(vinyl alcohol)/n-Si structure exhibits relaxation phenomena.

Dielectric properties of cobalt-doped poly(vinyl alcohol)

1994 ◽  
Vol 30 (2) ◽  
pp. 259-263 ◽  
Author(s):  
M.A. El-Shahawy ◽  
M.M. Elkholy
Keyword(s):  
Dielectric Properties ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol

Thermal, mechanical and dielectric properties of poly(vinyl alcohol)/graphene oxide composites

2014 ◽  
Author(s):  
Sunil G. Rathod ◽  
R. F. Bhajantri ◽  
V. Ravindrachary ◽  
P. K. Pujari ◽  
T. Sheela ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Dielectric Properties ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Oxide Composites
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