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http://dx.doi.org/10.6111/JKCGCT.2016.26.5.193

Characteristics and thermal stability of SrAl2O4: Eu2+, Dy3+ long afterglow phosphors synthesized solid state reaction and polymerized complex method  

Kim, Tae-Ho (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET))
Hwang, Hae-Jin (School of Material Science and Engineering, Inha University)
Kim, Jin-Ho (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET))
Hwang, Kwang-Taek (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET))
Han, Kyu-Sung (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET))
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.26, no.5, 2016 , pp. 193-200 More about this Journal
Abstract
Characteristics of $SrAl_2O_4:Eu^{2+}$, $Dy^{3+}$ phosphorescent phosphors synthesized by solid state reaction and polymerized complex method were comparatively analyzed. In order to evaluate thermal stability of $SrAl_2O_4:Eu^{2+}$, $Dy^{3+}$ phosphorescent phosphors at high temperature, phosphorescent properties of $SrAl_2O_4:Eu^{2+}$, $Dy^{3+}$ were investigated with thermal treatment at $1250^{\circ}C$ under reducing atmosphere, which was the general heat treatment conditions for ceramic manufacturing process. The phosphorescent properties of thermally treated $SrAl_2O_4:Eu^{2+}$, $Dy^{3+}$ phosphors synthesized by solid state reaction and polymerized complex method were investigated. The crystal structure and crystallite size were observed through XRD analysis. Microstructure and particle size of thermally treated $SrAl_2O_4:Eu^{2+}$, $Dy^{3+}$ phosphors were analyzed by SEM and PSA. Photoluminescence and afterglow characteristics of thermally treated $SrAl_2O_4:Eu^{2+}$, $Dy^{3+}$ phosphorescent phosphors were measured by spectrofluorometer.
Keywords
$SrAl_2O_4: Eu^{2+}$; $Dy^{3+}$; Phosphorescence; Thermal stability; Long afterglow phosphor; Raw material;
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Times Cited By KSCI : 6  (Citation Analysis)
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