Cathodoluminescence of $Mg_2$$SnO_4$:Mn,:Mn Green Phosphor under Low-Voltage Electron Excitation

$Mg_2$$SnO_4$:Mn 녹색 형광체의 저전압 음극선 발광 특성

  • Kim, Gyeong-Nam (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Jeong, Ha-Gyun (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Park, Hui-Dong (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Kim, Do-Jin (Dept. of Materials Engineering, Chungnam National University)
  • 김경남 (한국화학연구소 화학소재연구부) ;
  • 정하균 (한국화학연구소 화학소재연구부) ;
  • 박희동 (한국화학연구소 화학소재연구부) ;
  • 김도진 (충남대학교 재료공학과)
  • Published : 2001.09.01

Abstract

Mg$_2$SnO$_4$having an inverse spinel structure was selected as a new host material of $Mn^{2+}$ activator. The luminescence of the $Mg_2$SnO$_4$:Mn phosphor prepared by the solid-state reaction were investigated under ultraviolet and low-voltage electron excitation. The Mn-doped magnesium tin oxide exhibited strong green emission with the spectrum centered at 500nm wavelength. It was explained that the green emission in $Mg_2$SnO$_4$:Mn phosphor is due to energy transfer from $^4T_1to ^6A_1\;of\; Mn^{2+}$ ion at tetrahedral site in the spinel structure. The optimum concentration of $Mn^{2+}$/ion exhibiting maximum emission intensity by the low-voltage electron excitation was 0.6mol%. ?

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