Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1496814 | Optical Materials | 2007 | 4 Pages |
Abstract
It has been found that charge compensated CaMoO4:Eu3+ phosphors show greatly enhanced red emission under 393 and 467 nm-excitation, compared with CaMoO4:Eu3+ without charge compensation. Two approaches to charge compensation, (a) 2Ca2+ → Eu3+ + M+, where M+ is a monovalent cation like Li+, Na+ and K+ acting as a charge compensator; (b) 3Ca2+ → 2Eu3+ + vacancy, are investigated. The influence of sintering temperature and Eu3+ concentration on the luminescent property of phosphor samples is also discussed.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jie Liu, Hongzhou Lian, Chunshan Shi,