期刊
JOURNAL OF LUMINESCENCE
卷 122, 期 -, 页码 509-511出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2006.01.221
关键词
SrAl2O4 : Eu,Dy; afterglow; decay profile; Dy3+ ion; hole trap; Sr2+ vacancy
类别
The temperature dependence of the time-integrated intensity of afterglow in SrAL(2)O(4):Eu,Dy and SrAl2O4:Eu phosphors has been investigated by using UV light from a deuterium lamp. The time-integrated intensity of afterglow in SrAl2O4:Eu,Dy increases at around 150 K with temperature, and reaches the maximum at around 270 K. These results are compared with those for SrAlO4:Eu, and the function of Dy3+ ions is discussed in connection with the creation of hole traps. (c) 2006 Elsevier B.V. All rights reserved.
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