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J. Korean Ceram. Soc. > Volume 38(9); 2001 > Article
Journal of the Korean Ceramic Society 2001;38(9): 817.
새로운 $Mg_{2}SnO_{4}:Mn$ 형광체의 광 발광 특성
김경남, 정하균, 박희동, 김도진1
한국화학연구소 화학소재연구부
1충남대학교 재료공학과
Photoluminescence Properties of Novel $Mg_{2}SnO_{4}:Mn$ Phosphor
Kyung-Nam Kim, Ha-Kyun Jung, Hee-Dong Park, Do-Jin Kim1
Advanced Materials Division, Korea Research Institute of Chemical Technology
1Department of Materials Engineering, Chungnam National University
A new $Mg_{2-x}MN_xSnO_4$ phosphor with an inverse spinel structure was synthesized by the solid-state reaction technique. The photoluminescence properties of the $Mg_2SnO_4$:Mn phosphors were investigated under 147nm -vacuum ultraviolet ray excitation. The Mn-doped $Mg_2SnO_4$ phosphor exhibited high emission intensity with the spectrum centered at 500nm wavelength. It was explained that the green emission in $Mg_2SnO_4$:Mn phosphor has originated from energy transfer from $^4T_1$ to $^6A_1$ of $Mn^{2+}$ ion at tetrahedral site of the spinel structure. The $Mn^{2+}$ ion concentration exhibiting the maximum emission intensity under the excitation of 147nm-vacuum ultraviolet ray was 0.25mol%. And the decay time of the phosphor was shorter than 10ms.
Key words: Phosphor, Mn activator, Green emission, Decay time, VUV PL
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