AC conductivity and mechanism of conduction study of lithium barium pyrophosphate Li2BaP2O7 using impedance spectroscopy

Ionics ◽  
2014 ◽  
Vol 21 (4) ◽  
pp. 935-948 ◽  
Author(s):  
Marwa Krichen ◽  
Makram Megdiche ◽  
Kamel Guidara ◽  
Mohamed Gargouri
Keyword(s):  
Impedance Spectroscopy ◽  
Ac Conductivity

Study on Low Temperature Conduction Mechanism of Al Doped ZnO/SiO2/ P-Si Heterojunction

2021 ◽  
Vol 904 ◽  
pp. 363-368
Author(s):  
Xiao Yan Zhou ◽  
Bang Sheng Yin
Keyword(s):  
Activation Energy ◽  
Impedance Spectroscopy ◽  
Low Temperature ◽  
Grain Boundaries ◽  
Ac Conductivity ◽  
Spray Pyrolysis Method ◽  
Temperature Conductivity ◽  
Calculated Activation Energy ◽  
Doped Zno ◽  
Temperature Conduction

The 3 at% Al doped ZnO thin films were deposited on p-Si substrate with a native SiO2 layer by spray pyrolysis method. Low temperature conduction behaviors were studied by analysis of impedance spectroscopy and low temperature ac conductivity. The results of impedance spectroscopy showed that the grain boundaries contributed to the resistivity of Al doped ZnO/SiO2/p-Si heterojunction. The calculated activation energy was 0.073 eV for grain boundaries. The equivalent circuit to demonstrate the electrical properties of Al doped ZnO/SiO2/p-Si heterojunction was a series connection of two parallel combination circuits of a resistor and a universal capacitor. Low temperature ac conductivity measurements indicated that the conductivity increased with temperature. Low temperature conductivity mechanism was electron conductivity, and the activation energy was 0.086 eV.

Electrical Dielectric Permittivity and Conductivity Analysis of Poly(N-Carbazole) (PVK) Blending with Polyvinylpyrrolidone (PVP)

2018 ◽  
Vol 762 ◽  
pp. 244-248
Author(s):  
Ahmad Nazib Alias ◽  
Zubainun Mohamed Zabidi ◽  
N. Ramlee ◽  
Yanti Yaacob ◽  
Siti Hajar Noor Alshurdin ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Dielectric Permittivity ◽  
Ac Conductivity ◽  
Electrochemical Impedance ◽  
Casting Method ◽  
Vacuum Oven ◽  
Correlated Barrier Hopping ◽  
Universal Power Law ◽  
Hopping Model

Electrical dielectric spectra and alternating current (ac) conductivity of blended poly (N-vinlycarbazole) (PVK) with polyvinylpyrrolidone (PVP) at different temperature are investigated. The polymer blends were prepared by dissolving in dimethylformamide (DMF) using drop casting method and further dried in vacuum oven. The dielectric and ac conductivity of each sample was investigated using electrochemical impedance spectroscopy (EIS) method. Dielectric permittivity studies revealed that there are significant changes in the spectra at different temperature. The ac conductivity was further analyzed by using universal power law. The hopping parameter was calculated by using correlated barrier hopping model.

Influence of La doping on structure, AC conductivity and impedance spectroscopy of Ba2SnO4 Ruddlesden Popper oxide

2021 ◽  
Vol 274 ◽  
pp. 125186
Author(s):  
Upendra Kumar ◽  
Harshpreet Cheema ◽  
Vedika Yadav ◽  
Ram Sundar Maurya ◽  
Aditya Kumar ◽  
...  
Keyword(s):  
Impedance Spectroscopy ◽  
Ac Conductivity ◽  
La Doping

Ac conductivity study of lithium and potassium diphosphate LiK3P2O7 using impedance spectroscopy

Ionics ◽  
2014 ◽  
Vol 20 (9) ◽  
pp. 1255-1266 ◽  
Author(s):  
Amira Zaafouri ◽  
Makram Megdiche ◽  
Lassad Mechi ◽  
Mohamed Gargouri
Keyword(s):  
Impedance Spectroscopy ◽  
Ac Conductivity
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