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자료유형
학술대회자료
저자정보
Lee, Chang-Hee (Advanced Materials Division, Korea Research Institute of Chemical Technology) Roh, Hyun-Sook (Advanced Materials Division, Korea Research Institute of Chemical Technology, Dept. of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology) Kang, Yun-Chan (Advanced Materials Division, Korea Research Institute of Chemical Technology) Park, Hee-Dong (Advanced Materials Division, Korea Research Institute of Chemical Technology) Park, Seung-Bin (Dept. of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology)
저널정보
한국정보디스플레이학회 한국정보디스플레이학회 International Meeting 한국정보디스플레이학회 2003년도 International Meeting on Information Display
발행연도
2003.1
수록면
791 - 794 (4page)

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To synthesize $Gd_{2}O_{3}:Eu$ phosphor powder of nano size and high luminescence efficiency under UV (ultraviolet) and VUV (vacuum ultraviolet) light, organic additives such as citric acid and ethylene glycol and $Na_{2}CO_{3}$ flux were introduced in large-scale spray pyrolysis and critical conditions for forming nano-sized particles were investigated. The $Gd_{2}O_{3}:Eu$ phosphor particles prepared from solutions with organic additives such as citric acid and ethylene glycol had micron size and spherical shape. However, the particles prepared from polymeric precursor solution with $Na_{2}CO_{3}$ flux had nano size and non-aggregation characteristics. The as-prepared spherical particles with micron size turned into nano-sized particles during post-treatment by recrystallization process. The nano-sized $Gd_{2}O_{3}:Eu$ phosphor particles showed higher brightness than the commercial $Y_2O_3:Eu$ phosphor product under both UV light of 254nm and VUV light of 147 nm.

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