Photoluminescence Properties of Ba-Substituted SrAl2O4:Eu Phosphor
2004 ◽
Vol 449-452
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pp. 745-748
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Keyword(s):
X Ray
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The synthesis of Sr1-XBaXAl2O4 :Eu 2+ (x = 0, 0.1, 0.2 and 0.3 mol) phosphor and its properties of photoluminescence and long-phosphorescence were investigated as a function of sintering condition. The single phase of SrAl2O4 was obtained by sintering the mixtures of SrCO3, BaCO3, Eu2 O3, Al2O3 and 3wt% B2 O3 powders over 1100°C in Ar/H2 atmosphere. Stuctural properties were analyzed by a X-ray diffractometer, microstructural properties by a SEM, and photoluminescent properties by a PL measuring system. The optimum sintering condition for the long-phosphorescent phosphor of Sr1-XBaXAl2O4:Eu2+ was found at 1400 °C. Substitution of Ba about 0.2mol in SrAl2O4 :Eu 2+ enhanced the photoluminescence and long-phosphorescence.
2002 ◽
Vol 16
(18)
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pp. 661-667
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Keyword(s):
1990 ◽
Vol 48
(2)
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pp. 278-279
DEPOSITION OF SINGLE-PHASE CuInSe2 THIN FILMS UNDER LOW VACUUM LEVEL BY A TWO-STAGE GROWTH TECHNIQUE
2009 ◽
Vol 16
(03)
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pp. 381-386
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