Optical Absorption Spectra of Sodium Borate Cobalt Doped Glasses

Journal Article · Wed Feb 14 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2711101· OSTI ID:21054893

Elokr, M M; Hassan, M A ^[1]; Yaseen, A M ^[2]; Elokr, R ^[3]

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1. Physics Dept. Faculty of Science. Al Azhar University. Cairo (Egypt)
2. Physics Dept. Faculty of Education. Ain shams University. Cairo (Egypt)
3. National center of Radiation technology. Cairo (Egypt)

Glassy system: xNa2O-(100-x-y)B2O3-yCo3O4 has been prepared by conventional melt quenching technique. Optical absorption spectra have been obtained in the range 300 - 2500 nm at room temperature. An absorption edge was observed in the near UV range, the analysis of which reveals that indirect transition is the dominant absorption mechanism. All prepared samples exhibit blue color, indicating that the Co ions are acted upon by tetrahedral ligand field. Obtained spectra were used to estimate some ligand field parameters.

• OSTI ID: 21054893
• Journal Information: AIP Conference Proceedings, Vol. 888, Issue 1; Conference: MTPR-06: 2. international conference on modern trends in physics research, Cairo (Egypt), 6-11 Apr 2006; Other Information: DOI: 10.1063/1.2711101; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTRA
BORATES
COBALT COMPOUNDS
COBALT IONS
COLOR
DOPED MATERIALS
GLASS
LIGANDS
QUENCHING
SODIUM COMPOUNDS
ULTRAVIOLET SPECTRA