Red Afterglow Properties of Eu 3+ in CaMoO 4 Phosphor
Autor: | Gui-Fang Ju, Haoyi Wu, Yi-Hua Hu, Fengwen Kang |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | Chinese Physics Letters. 28:107201 |
ISSN: | 1741-3540 0256-307X |
DOI: | 10.1088/0256-307x/28/10/107201 |
Popis: | Eu3+ doped CaMoO4 phosphors were synthesized by using the solid state reaction method. The x-ray diffraction shows that all the patterns of the obtained samples are indexed to the sheelite structure. Red afterglow originating from the 5D0−7FJ (J = 0,1,2,3,4) transitions of Eu3+ was observed after the samples were excited by 254 nm and the optimal Eu3+ concentration in the CaMoO4 matrix was experimentally determined to be 0.50%. A possible explanation of this afterglow property is also discussed. |
Databáze: | OpenAIRE |
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