High and low temperature DC electrical properties of vanadium borate glasses

Rajashekara, G.; Sangamesh, J.; Nagaraja, N.; Sankarappa, T.; Kumar, Prashant; Kori, SantoshKumar

doi:10.1016/j.matpr.2018.05.148

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…It is seen from Figure 4 and 5 that, the DC conductivity decreases gradually with a considerable increase in activation energy values hence it confirms the dependency of conductivity with temperature. The obtained values of activation energy and conductivity indicate a decrease in conductivity due to the low presence of oxide ions in the glass [50][51][52]. Structural modification in the glass network with the addition of Eu2O3 and the reduction of the molar concentration of Bi2O3 may result in lower oxide ions [52].…”

Section: Conductivitymentioning

confidence: 83%

“…The obtained values of activation energy and conductivity indicate a decrease in conductivity due to the low presence of oxide ions in the glass [50][51][52]. Structural modification in the glass network with the addition of Eu2O3 and the reduction of the molar concentration of Bi2O3 may result in lower oxide ions [52]. Moreover, the decrease in DC conductivity is may be owing to the sitting of Eu 3+ ions on the lattice sites of TeO2/Bi2O3.…”

Section: Conductivitymentioning

confidence: 86%

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DC Conductivity of Heavy Metal Oxide (Bi2O3) Boro-Tellurite Glasses: Effect of Eu2O3

Devaraja¹,

Gowda²

2022

J Met Mater Miner

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A novel investigation on structural and DC conductivity of Eu2O3 activated heavy metal oxide boro-tellurite (BBTE) glasses were analyzed. The boro-bismuth-tellurite glass samples doped with europium trioxide were fabricated by the conventional melt quenching method. The microstructural and structural studies of the glasses have been done by scanning electron microscope (SEM) and X-ray diffraction (XRD), respectively. The DC conductivity of the BBTE samples has been studied at the frequency range 40Hz-6MHz and in the temperature range 303-453K. The XRD and SEM, confirm the non-crystalline and homogeneous properties of prepared glasses. The DC conductivity of glasses obeys Arrhenius behavior and DC conductivity decreases with increasing Eu2O3 concentration. A very less amount of DC conductivity was noticed in glasses with various temperatures and it is due to less availability of oxide ions.

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