LED용 BaGa2S4:Eu2+ 녹색 형광체의 합성 및 발광특성

김재명; 박정규; 김경남; 이승재; 김창해; Jae Myung Kim; Joung Kyu Park; Kyung Nam Kim; Seung Jae Lee; Chang Hae Kim

Korean Journal of Materials Research, Vol.16, No.12, 761-765, December, 2006

DOI10.3740/MRSK.2006.16.12.761 Export Citation

LED용 BaGa2S4:Eu2+ 녹색 형광체의 합성 및 발광특성

Synthesis and Luminescent Characteristics of BaGa2S4:Eu2+ Green Phosphor for Light Emitting Diode

김재명^†, 박정규, 김경남 , 이승재, 김창해

한국화학연구원 화학소재연구부 형광물질연구팀

Jae Myung Kim^†, Joung Kyu Park, Kyung Nam Kim , Seung Jae Lee, and Chang Hae Kim

Advanced Materials Division, Korea Research Institute of Chemical Technology, Daejeon 305-600, Korea

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[ ] structured of phosphor has been used at various field because those have high luminescent efficiency and broad emission band. Among these phosphors, the europium doped was prepared by solid-state method and had high potential application due to an emissive property of UV region. Also, the common sulfide phosphors were synthesized by using injurious gas. However, in this study phosphor in addition to excess sulfur was prepared under at 5% reduction atmosphere. Thus, this process could be considered as large scale synthesis because of non-harmfulness and simplification. The photoluminescence efficiency of the prepared phosphor increased 20% than that of commercial phosphor. The prepared could be applied to green phosphor for white LED of three wavelengths.

Keywords:Phosphors;LED (Light Emitting Diode)

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Eichenauer L, Jarofke B, Mertins HC, Dreyhsig J, Busse W, Gumlich HE, Benalloul P, Barthou C, Benoit J, Fouassier C, Garcia A, Phys. Stat. Sol. A, 153, 515 (1996)
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Jiang YD, Villalobos G, Souriau JC, Paris H, Summers CJ, Wang ZL, Solid State Commun, 113, 475 (2000)
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Narukawa Y, Niki I, lzuno K, Yamada M, Murazaki Y, Mukai T, Jpn. J. Appl. Phys., 41, 371 (2002)
Uchida Y, Taguchi T, Proc. SPIE., 4996, 166 (2003)
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Dexter DL, Schulman JH, J. Chem. Phys., 22, 1063 (1954)

[Related Articles]

[1] Peters TE, Baglio JA, J. Electrochem. Soc., 119, 230 (1972)

[2] Donohue PC, Hanlon JE, J. Electrochem. Soc., 121, 137 (1974)

[3] Eichenauer L, Jarofke B, Mertins HC, Dreyhsig J, Busse W, Gumlich HE, Benalloul P, Barthou C, Benoit J, Fouassier C, Garcia A, Phys. Stat. Sol. A, 153, 515 (1996)

[4] Benalloul P, Barthou C, Benoit J, J. Alloy and Comp., 275-277, 709 (1998)

[5] Aidaev FS, Inorg. Mater., 39, 96 (2003)

[6] Jiang YD, Villalobos G, Souriau JC, Paris H, Summers CJ, Wang ZL, Solid State Commun, 113, 475 (2000)

[7] Yang S, Stoffers C, Zhang F, Jacobsen SM, Wagner BK, Summers CJ, Appl. Phys. Lett., 72, 158 (1998)

[8] Davolos MR, Garcia A, Fouassier C, Hagenmuller P, J. Solid State Chem., 83, 316 (1989)

[9] Nakamura S, Fasol G, 'The Blue Laser Diode' Springer, 343 (1996)

[10] Narukawa Y, Niki I, lzuno K, Yamada M, Murazaki Y, Mukai T, Jpn. J. Appl. Phys., 41, 371 (2002)

[11] Uchida Y, Taguchi T, Proc. SPIE., 4996, 166 (2003)

[12] Shannon RD, Acta Cryst. A, 32, 751 (1976)

[13] Dexter DL, Schulman JH, J. Chem. Phys., 22, 1063 (1954)