Preparation and characterization of long persistence strontium aluminate phosphor

作者：Han Sang Do; Singh Krishan C; Cho Tai Yeon; Lee Hak Soo; Jakhar Devender; Hulme John P; Han Chi Hwan; Kim Jung Duk; Chun Il Su; Gwaka Jihye^*

来源：Journal of Luminescence, 2008, 128(3): 301-305.

DOI：10.1016/j.jlumin.2007.07.017

• SrAl2O4
• photoluminescence
• phosphor
• long persistence
• afterglow

Long afterglow green phosphor SrAl2O4:Eu2+,Dy3+ is synthesized by a solid-state reaction method at 1350 degrees C under mild reducing atmosphere of activated carbon. The effects of B2O3 flux on the sintering dynamic process and the optimum concentrations of EU2+ and Dy3+ for long-lasting bright luminescence property have been investigated. The effect of a small amount of charge compensators like Mg2+, Zn2+, Na+, and K+ on long persistence has also been studied. TG/DTA, SEM, and XRD have been used to characterize the synthesized phosphor.

• 出版日期2008-3