Defects Induced Enhancement of Eu3+ Emission in Yttria (Y2O3:Eu3+)
- 1 November 1994
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 33 (11R)
- https://doi.org/10.1143/jjap.33.6207
Abstract
Bixbyite type Y2O3:Eu3+ apart from being the efficient red phosphor extensively used in trichromatic fluorescent lamps, it is a typical system one can apply Jørgensen's refined electron spin pairing theory. This can be used to explain the enhancement in Eu3+ emission intensity observed with the aliovalent substitution in the yttria host matrix. Results based on these are explained qualitatively by considering a simple configurational coordinate model. Futhermore, an insight into the different types of defects induced with the aliovalent substitution in the yttria lattice has become possible with EPR probe.Keywords
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