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Temperature-Dependent 5D07F0 Luminescence of Sm2+ Ions Doped in Alkaline Earth Borophosphate Glass

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Sm2O3-doped SrO–BaO–P2O5–B2O3 glass was prepared by a conventional melt quenching method in air. The glass was irradiated using X-rays to reduce the Sm3+ ions to Sm2+ ions. After the X-ray irradiation, photoluminescence studies at different temperatures showed that the conversion of Sm3+ to Sm2+ could be realized in this alkaline earth borophosphate glass. The luminescence of the Sm2+ ions showed a strong dependence on temperature. Photo-stability of Sm2+ ion was evaluated using a photo-bleaching method. Thermo-luminescence and life-time measurements were also investigated. The results of this study could be useful for understanding the reduction mechanism of Sm3+ ions to Sm2+ ions in alkaline earth borophosphate glass.
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Document Type: Research Article

Affiliations: 1: College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China 2: Department of Physics, Pukyong National University, Busan 608-737, Republic of Korea

Publication date: 2010-03-01

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