한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Effects of Divalent Cation Incorporation on the Emission Characteristics of $Srln_2O_4:Pr^{3+}$ Phosphors

  • Kang, Seung-Youl (Basic Research Lab., Electronics and Telecommunications Research Institute) ;
  • Kang, Seong-Gu (Department of Chemical Engineering, Hoseo University) ;
  • Lee, Yong-Eui (Basic Research Lab., Electronics and Telecommunications Research Institute) ;
  • Ahn, Seong-Doek (Basic Research Lab., Electronics and Telecommunications Research Institute) ;
  • Suh, Kyung-Soo (Basic Research Lab., Electronics and Telecommunications Research Institute)
  • Published : 2002.08.21
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Abstract

In this study, we have investigated the substitutional effects of In ions with divalent ones in the $Srln_2O_4:Pr^{3+}$ phosphors and the relative change of the red and blue emissions. The substitutional Zn ions greatly intensified the blue emission band at 492 nm, but the red emission band at 608 nm was relatively less changed. On the other hand, Cd ions have no effect on the relative intensities. We explained the phenomena in connection with the distance of Pr-D, i.e., covalency experienced by a $Pr^{3+}$ion.

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