Physical and optical absorption studies of Fe{sup 3+} - ions doped lithium borate glasses containing certain alkaline earths

Journal Article · Mon May 23 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4947870· OSTI ID:22608651

Bhogi, Ashok ^[1]; Kumar, R. Vijaya ^[2]

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1. VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana (India)
2. School of Physics, University of Hyderabad, Hyderabad, Telangana (India)

Iron ion doped lithium borate glasses with the composition 15RO-25Li{sub 2}O-59B{sub 2}O{sub 3}-1Fe{sub 2}O{sub 3} (where R= Ca, Sr and Ba) have been prepared by the conventional melt quenching technique and characterized to investigate the physical and optical properties using XRD, density, molar volume and UV-Visible spectroscopy. The optical absorption spectra exhibit a band at around 460 nm which is assigned to {sup 6}A{sub 1g}(S) → 4E{sub g} (G) of Fe{sup 3+} ions with distorted octahedral symmetry. From ultraviolet absorption edges, the optical band gap and Urbach energies have been evaluated. The effect of alkaline earths on these properties is discussed.

• OSTI ID: 22608651
• Journal Information: AIP Conference Proceedings, Vol. 1731, Issue 1; Conference: DAE solid state physics symposium 2015, Uttar Pradesh (India), 21-25 Dec 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
ABSORPTION SPECTRA
BARIUM OXIDES
BORATES
CALCIUM OXIDES
DENSITY
DOPED MATERIALS
GLASS
IRON ADDITIONS
IRON OXIDES
LITHIUM COMPOUNDS
LITHIUM OXIDES
OPTICAL PROPERTIES
QUENCHING
SPECTROSCOPY
STRONTIUM OXIDES
SYMMETRY
ULTRAVIOLET RADIATION
X-RAY DIFFRACTION