Insights into the conduction mechanism of magneto-dielectric BaFe10.5In1.5O19: an impedance spectroscopy and AC conductivity study

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.

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Impedance spectroscopy and conduction mechanism of magnetoelectric hexaferrite BaFe 10.2 Sc 1.8 O 19

Journal of the American Ceramic Society ◽

10.1111/jace.16275 ◽

2019 ◽

Vol 102 (7) ◽

pp. 4038-4047 ◽

Cited By ~ 2

Author(s):

Qishan Zhu ◽

Rujun Tang ◽

Hao Zhou ◽

Yu Wang ◽

Sicheng Xu ◽

...

Keyword(s):

Impedance Spectroscopy ◽

Conduction Mechanism ◽

O 19

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Conduction mechanism of an infrared emitting diode: Impedance spectroscopy and current-voltage analysis

Semiconductors ◽

10.1134/s106378261202008x ◽

2012 ◽

Vol 46 (2) ◽

pp. 251-256 ◽

Cited By ~ 1

Author(s):

Adem Dönmez ◽

Habibe Bayhan

Keyword(s):

Impedance Spectroscopy ◽

Conduction Mechanism ◽

Current Voltage

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

Ionics ◽

10.1007/s11581-014-1261-6 ◽

2014 ◽

Vol 21 (4) ◽

pp. 935-948 ◽

Cited By ~ 11

Author(s):

Marwa Krichen ◽

Makram Megdiche ◽

Kamel Guidara ◽

Mohamed Gargouri

Keyword(s):

Impedance Spectroscopy ◽

Ac Conductivity

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AC CONDUCTION PHENOMENON OF Li2O–WO3–B2O3 GLASSES DOPED WITH V2O5

Functional Materials Letters ◽

10.1142/s179360471350032x ◽

2013 ◽

Vol 06 (03) ◽

pp. 1350032 ◽

Cited By ~ 3

Author(s):

LINGANABOINA SRINIVASA RAO ◽

NALLURI VEERAIAH ◽

TUMU VENKATAPPA RAO

Keyword(s):

High Temperatures ◽

Ac Conductivity ◽

Conduction Mechanism ◽

Glass Composition ◽

Melt Quenching ◽

Frequency Exponent ◽

Spreading Factor ◽

Cbh Model ◽

Tan Δ ◽

Ac Conduction

The glass composition 40 Li 2 O –5 WO 3–(55−x) B 2 O 3: x V 2 O 5 for x = 0.2, 0.4, 0.6 and 0.8 is chosen for the present study. The glass samples were synthesized by conventional melt-quenching technique. The dielectric properties such as constant (ε′), loss (tan δ) and ac conductivity (σac) are carried out as a function of temperature (30–270°C) and frequency (102–105 Hz). The glass sample (at x = 0.6) exhibited highest ac conductivity (σac) and spreading factor (β) among all the samples. All glasses exhibited mixed conduction (both electronic and ionic) at high temperatures. The frequency exponent s denotes the ac conduction mechanism is associated with both QMT model (at low temperatures) and CBH model (at high temperatures).

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

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.762.244 ◽

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.

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