Structural study and DC conductivity of vanadyl doped zinc lithium borate glasses

Journal Article · Wed Jun 24 04:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4917876· OSTI ID:22490369

Seema, ^[1]; Dahiya, M. S.; Yadav, Arti ^[1]; Agarwal, A. ^[2]; Dahiya, S. ^[3]

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1. Physics Department, Deenbandhu Chhotu Ram University of Science & Technology, Murthal-131039 (India)
2. Applied Physics Department, Guru Jambheshwar University of Science & Technology, Hisar-125001 (India)
3. Physics Department, Baba Mast Nath University, Asthal Bohr, Rohtak-124001 (India)

Glasses with composition xZnO⋅(30 − x)⋅Li{sub 2}O⋅70B{sub 2}O{sub 3} containing 2 mol% of V{sub 2}O{sub 5} (x = 0, 2, 5, 7 and 10) were prepared by standard melt-quench technique. The amorphous nature of the glass samples was confirmed by using x-ray diffraction. The structural changes in these glasses have been investigated by employing IR spectroscopy in the mid-IR range. The infrared spectroscopic analysis confirms the presence of both triangular and tetraheldral coordinated boron units and absence of boroxol ring. It also shows that metal-oxide vibrations are present which are due to the bonding of lithium and zinc ions with oxygen. The dc conductivity was measured in the temperature range 353-523 K. The dc conductivity results show that conductivity decreases and activation energy increases when Li{sub 2}O is replaced by ZnO, keeping the concentration of B{sub 2}O{sub 3} constant. Decrease in conductivity and increase in activation energy shows that addition of ZnO to the glass matrix shows a “blocking effect” on the overall mobility of alkali ions, but at higher concentration the hopping effect was also observed.

• OSTI ID: 22490369
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1665; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTIVATION ENERGY
AMORPHOUS STATE
BORATES
BORON OXIDES
CHANNELING
CONCENTRATION RATIO
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
GLASS
INFRARED SPECTRA
LITHIUM OXIDES
MATRIX MATERIALS
VANADIUM OXIDES
X-RAY DIFFRACTION
ZINC IONS
ZINC OXIDES