한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Enhanced Luminescence of $SrTiO_3:Pr^{3+}$by Incorporating with $Li^+$ or $Na^+$Ion

  • Tian, Lianhua (Department of Molecular Science and Technology, Ajou University) ;
  • Mho, Sun-Il (Department of Molecular Science and Technology, Ajou University) ;
  • Bae, Hyun-Sook (Division of Materials Research, Korea Institute of Science and Technology) ;
  • Yu, Byung-Yong (Division of Materials Research, Korea Institute of Science and Technology) ;
  • Pyun, Chong-Hong (Division of Materials Research, Korea Institute of Science and Technology)
  • Published : 2002.08.21
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Abstract

Photoluminescenc (PL) and low-voltage cathodoluminescence (CL) characteristics of $[xSrTiO_3+(1-x)Li_2TiO_3]:Pr^{3+}$ and $[xSrTiO_3+(1-x)Na_2TiO_3]:Pr^{3+}$ systems were investigated. The red luminescence intensities of these compounds are enhanced remarkably by the incorporation of $Li^+$ or $Na^+$ ion as compared to that of $SrTiO_3:Pr^{3+}$. The enhanced luminescence is speculated to result from both the charge compensation of $Pr^{3+}$ site and oxygen vacancies generated in the lattices by $Li^+$ or $Na^+$ ion.

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