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 molar ratio of Mn

Mn 첨가에 따른 $ZnGa_2O_4$ 형광체의 발광특성

  • Hong, Beom-Joo (Department of Electric and Electronics Engineering, Kyungwon University) ;
  • Lee, Seung-Kyu (Department of Electric and Electronics Engineering, Kyungwon University) ;
  • Kwon, Sang-Jik (Department of Electric and Electronics Engineering, Kyungwon University) ;
  • Kim, Kyung-Hwan (Department of Electric and Electronics Engineering, Kyungwon University) ;
  • Park, Yong-Seo (Department of Electric and Electronics Engineering, Kyungwon University) ;
  • Cho, Hyung-Wook (Department of Electric and Electronics Engineering, Kyungwon University)
  • 홍범주 (경원대학교 전기전자공학과) ;
  • 이승규 (경원대학교 전기전자공학과) ;
  • 권상직 (경원대학교 전기전자공학과) ;
  • 김경환 (경원대학교 전기전자공학과) ;
  • 박용서 (경원대학교 전기전자공학과) ;
  • 최형욱 (경원대학교 전기전자공학과)
  • Published : 2005.07.07
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Abstract

The $ZnGa_2O_4$:Mn phosphor was synthesized through solid-state reactions at the various molar ratio of Mn from 0.002 % to 0.01 %. Structural and optical properties of the $ZnGa_2O_4$:Mn phosphor was investigated by using X-ray diffraction (XRD), and cathodoluminescence (CL) measurements. The XRD patterns show that the Mn-doped $ZnGa_2O_4$ has a (311) main peak and a spinel phase. Also the emission wavelength shifts from 420 to 510 nm in comparison with $ZnGa_2O_4$ when Mn is doped in $ZnGa_2O_4$. These results indicate that $ZnGa_2O_4$:Mn phosphors hold promise for potential applications in field-emission display devices with high brightness operating in green spectral regions.

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