Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Preparation and Luminescent Properties of (Sr1Ca)TiO3:Pr1Al Phosphors

(Sr1Ca)TiO3:Pr1Al 형광체의 제조와 발광특성

  • 박창섭 (동의대학교 물리학과) ;
  • 이정운 (동의대학교 물리학과) ;
  • 유일 (동의대학교 물리학과)
  • Published : 2006.05.01
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Abstract

[ $Sr_xCa_{(1-x)}TiO_3$ ] red phosphors doped with Pr(0.13 mol%) and Al(0.23 mol%) were synthesized by solid state reaction method. Change of crystal structure occurred in $Sr_xCa_{(1-x)}TiO_3:Pr,Al$ phosphors with increasing value of x. Green and red luminescence were observed from $SrTiO_3:Pr,Al$ phosphors at low temperature. However, only red luminescence in the case of $CaTiO_3:Pr,Al$ phosphors was measured at low temperature. The main cause of green luminescence was explained by the bandgap reduction.

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References

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