Red Afterglow Properties of Eu 3+ in CaMoO 4 Phosphor

Autor: Gui-Fang Ju, Haoyi Wu, Yi-Hua Hu, Fengwen Kang
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