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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 |
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| ABSTRACT |
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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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