한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Synthesis and luminescence characterization of ZnS:Cu,Al phosphor by combustion method

  • Jeong, Young-Ho (Adv. Energy materials & Application Research Dept. Korea Institute of Energy Research(KIER)) ;
  • Myung, Kwang-Shik (Adv. Energy materials & Application Research Dept. Korea Institute of Energy Research(KIER)) ;
  • Park, Jin-Won (Dept. of Chemical Engineering, Yonsei University) ;
  • Hua, Yang (Department of Chemistry, Jilin University) ;
  • Han, Sang-Do (Adv. Energy materials & Application Research Dept. Korea Institute of Energy Research(KIER))
  • Published : 2003.07.09
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Abstract

A novel powder processing technique for the preparation of copper activated zinc sulfide (ZnS:Cu,Al) phosphor by combustion process has been proposed. Exothermic reaction between dissolved copper nitrate and carbohydrazide give small-sized particles in presence of alkali metal halides at lower temperature than the traditional method of preparation. This new route takes less than five minutes and requires much less energy. The optical and luminescence characteristics of ZnS:Cu,Al phosphor thus prepared were found to be enhanced significantly. Carbohydrazide acted as fuel at $500^{\circ}C$ with rapid heating and then the phosphors obtained were heated at $900^{\circ}C$ in an inert atmosphere for 3hrs to get better luminescent properties.

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