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

  • 제21권9호
  • /
  • Pages.825-828
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  • 2008
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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(Sr,Ba)TiO3:Pr,Al 형광체의 제조와 발광특성

Preparation and Luminescent Properties of (Sr,Ba)TiO3:Pr, Al Phosphors

  • 박창섭 (경북대학교 센서 및 디스플레이공학과) ;
  • 유일 (동의대학교 물리학과)
  • 발행 : 2008.09.01
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초록

$Sr_xBa_{(1-x)}TiO_3$ red phosphors doped with Pr(0.13 mol%) and Al(O.23 mol%) were synthesized by solid state reaction method. Orthorhombic perovskite structure with increasing value of x in $Sr_xBa_{(1-x)}TiO_3$:Pr,Al phosphors changed to cubic perovskite structure. Emission bands at 615 nm and 492 nm in $Sr_{0.25}Ba_{0.75}TiO_3$:Pr,Al and $BaTiO_3$:Pr,Al phosphors were observed at room temperature. The main cause of green luminescence at 492 nm was explained by the change of the 4f5d band.

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참고문헌

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