Luminescent properties of CaSiO3: Ce3+: A preliminary study

Rare-earth-activated CaSiO3 was synthesized through co-precipitation technique. Variation of Ca:Si ratio (x) resulted in formation of γ- Ca2SiO4 and β- Ca2SiO4 phases with significant effect on the Ce3+ luminescence. The average fluorescence lifetime of the Ce3+ ions for x = 1, 1.43 and 2 were found...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2021-07, Vol.612, p.412925, Article 412925
Main Authors: Barve, R.A., Panigrahi, B.S., Suriyamurthy, N., Venkatraman, B.
Format: Article
Language:English
Subjects:
Aluminum oxide
Cerium
Co-precipitation
Dicalcium silicate
Fluorescence
Ions
Luminescence
Luminescence quenching
Optical properties
Phosphors
Quantum efficiency
Rare earth elements
Rare earth ions
Silicates
Studies
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Summary:Rare-earth-activated CaSiO3 was synthesized through co-precipitation technique. Variation of Ca:Si ratio (x) resulted in formation of γ- Ca2SiO4 and β- Ca2SiO4 phases with significant effect on the Ce3+ luminescence. The average fluorescence lifetime of the Ce3+ ions for x = 1, 1.43 and 2 were found to be 33.5, 34.3 and 36.5 ns respectively. The quantum efficiency of the stoichiometric phosphor was 64%. The phosphor exhibits appreciable OSL sensitivity (62% of that of the Al2O3: C) for x = 2.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2021.412925