Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Cathode Luminescence Characteristics of $ZnGa_2O_4$ Phosphors with the doped activator

활성제 첨가에 따른 $ZnGa_2O_4$ 형광체의 발광특성

  • Hong, Beom-Joo (Department of Electrical Engineering, Kyungwon University) ;
  • Lee, Seung-Kyu (Department of Electrical Engineering, Kyungwon University) ;
  • Kim, Kyung-Hwan (Department of Electrical Engineering, Kyungwon University) ;
  • Park, Yong-Seo (Department of Electrical Engineering, Kyungwon University) ;
  • Choi, Hyung-Wook (Department of Electrical Engineering, Kyungwon University)
  • Published : 2005.11.10
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Abstract

The $ZnGa_2O_4$:Cr phosphor was synthesized through solid-state reactions at the various molar ratio of Cr from 0.002 % to 0.01 %. The XRD patterns show that the Cr-doped $ZnGa_2O_4$ has a (311) main peak and a spinel phase. Also the emission wavelength shills from 510 to 705 nm in comparison with $ZnGa_2O_4$:Mn when Cr is doped in $ZnGa_2O_4$. These results indicate that $ZnGa_2O_4$ phosphors hold promise for potential applications in field-emission display devices with high brightness operating in full color regions.

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