Electrical Conductivity Mechanism in Unconventional Lead Vanadate Glasses

2016 ◽  
Vol 186 (5-6) ◽  
pp. 372-384 ◽  
Author(s):  
F. Abdel-Wahab ◽  
A. Merazga ◽  
A. A. Montaser
Keyword(s):  
Electrical Conductivity ◽  
Conductivity Mechanism ◽  
Lead Vanadate ◽  
Vanadate Glasses

scholarly journals Dc electrical properties of semiconducting cobalt oxide substituted lead vanadate glasses

2018 ◽  
Vol 7 (4.5) ◽  
pp. 625
Author(s):  
K. K. Brahmananda Rao ◽  
K. V. Ramesh ◽  
P. Tejeswara Rao
Keyword(s):  
Electrical Conductivity ◽  
Present System ◽  
X Ray Diffraction ◽  
X Ray ◽  
Dc Electrical Conductivity ◽  
Amorphous Nature ◽  
Lead Vanadate ◽  
Vanadate Glasses ◽  
Dc Electrical Properties

Semiconducting lead vanadate glasses with CoO substitution represented as xCoO-(50-x) PbO-50V2O5 with x=5,10 and 15 mol% were prepared by melt quenching technique. They were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), differential thermal analysis (DTA) and DC electrical conductivity. The overall features of these XRD curves reveal the amorphous nature of present glasses. SEM investigations were conducted for the micro structural characterization of V2O5 crystal phases. Density was observed to decrease with an increase in CoO content. The dc electrical conductivity of the present system increases as the concentration of substitution of CoO increases with 5molpercentage to 15molpercentage.  

AN ADIABATIC HOPPING OF dc ELECTRICAL CONDUCTIVITY STUDIES ON NiO SUBSTITUTED LEAD VANADATE GLASSES

2009 ◽  
Vol 23 (23) ◽  
pp. 4833-4841
Author(s):  
K. V. RAMESH ◽  
N. MANJULA BHARATHI ◽  
B. SRINIVASA RAO ◽  
P. APPALA NAIDU
Keyword(s):  
Electrical Conductivity ◽  
Electrical Conduction ◽  
Theoretical Models ◽  
Amorphous Semiconductors ◽  
Hopping Conduction ◽  
Variable Range Hopping ◽  
Melt Quenching ◽  
Dc Electrical Conductivity ◽  
Lead Vanadate ◽  
Vanadate Glasses

Glasses of the system x ( NiO ) (50 – x) PbO : 50V 2 O 5 were prepared by melt quenching in the range x = 0 mol % to 15 mol%. Measurements are reported for dc electrical conductivity for the above compositions in the temperature range 300 K–500 K. The experimental results are analyzed with reference to various theoretical models proposed for dc electrical conduction in amorphous semiconductors. The analysis shows that at high temperatures the temperature dependence of dc conductivity is consistent with Mott's model of phonon-assisted hopping conduction, variable range hopping mechanism and Schnakenberg's model mechanism. The hopping in this system is adiabatic in nature.

Electrical conductivity improvement of strontium titanate doped lead vanadate glasses by nanocrystallization

2009 ◽  
Vol 404 (21) ◽  
pp. 4125-4131 ◽  
Author(s):  
M.M. El-Desoky ◽  
H.S.S. Zayed ◽  
F.A. Ibrahim ◽  
H.S. Ragab
Keyword(s):  
Electrical Conductivity ◽  
Strontium Titanate ◽  
Lead Vanadate ◽  
Vanadate Glasses

A neutron diffraction investigation of the structure of phosphorus, barium and lead vanadate glasses

1985 ◽  
Vol 76 (2-3) ◽  
pp. 333-350 ◽  
Author(s):  
Adrian C. Wright ◽  
Colin A. Yarker ◽  
Peter A.V. Johnson ◽  
Roger N. Sinclair
Keyword(s):  
Neutron Diffraction ◽  
Lead Vanadate ◽  
Vanadate Glasses

Structure and magnetic properties of lead vanadate glasses

2003 ◽  
Vol 330 (1-3) ◽  
pp. 156-167 ◽  
Author(s):  
A Mekki ◽  
G.D Khattak ◽  
L.E Wenger
Keyword(s):  
Magnetic Properties ◽  
Lead Vanadate ◽  
Vanadate Glasses

Study of LiMgVO4 electrical conductivity mechanism

2010 ◽  
Vol 489 (2) ◽  
pp. 714-718 ◽  
Author(s):  
C. Paraskeva ◽  
A. Kazakopoulos ◽  
K. Chrissafis ◽  
O. Kalogirou
Keyword(s):  
Electrical Conductivity ◽  
Conductivity Mechanism
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