Preparation and luminescence properties of yellow long-lasting phosphor Ca2ZnSi2O7:Eu2+, Dy3+
作者： Lingling Jiang , Siguo Xiao , Xiaoliang Yang , Xuean Zhang , Xiaohai Liu
DOI: 10.1016/J.MSEB.2012.10.022
关键词:
摘要: Abstract Long-lasting phosphors Ca 2 ZnSi O 7 :Eu 2+ , Dy 3+ are prepared by solid-state reaction method assisted with different fluxes. Broadband emission, peaked at 580 nm and originating from 4f to 5d transition of Eu is observed. The emission intensities the can be enhanced 4.84 7.73 times introduction H 3 BO CaF respectively. Moreover, their afterglow also respectively prolonged 11 h 12 h. yellow excited both ultraviolet visible light, thus permitting its application in room outdoor environment. In terms crystal structure trap feature added fluxes, mechanism for improved luminescence properties discussed.
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