고온 화염분무열분해법에 의해 합성된 장파장 자외선 하에서의 녹색 발광 실리케이트 형광체

조중상; 구혜영; 이상호; 강윤찬; Jung Sang Cho; Hye Young Koo; Sang Ho Lee; Yun Chan Kang

Korean Journal of Materials Research, Vol.18, No.2, 77-83, February, 2008

DOI10.3740/MRSK.2008.18.2.077 Export Citation

고온 화염분무열분해법에 의해 합성된 장파장 자외선 하에서의 녹색 발광 실리케이트 형광체

Green-Emitting Silicate Phosphor Under Long Wavelength Ultraviolet Prepared by High Temperature Flame Spray Pyrolysis

조중상, 구혜영 , 이상호, 강윤찬 ^†

건국대학교 화학공학과

Jung Sang Cho, Hye Young Koo , Sang Ho Lee, and Yun Chan Kang^†

Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea

E-mail:

Green-emitting Ba1.468Sr0.5SiO4: Eu0.012,Y0.02 phosphor powders under long-wavelength ultraviolet light were prepared via high-temperature flame spray pyrolysis from spray solutions with and without NH4Cl flux. The effects of the temperature of the diffusion flame and the NH4Cl flux on the morphologies, crystal structures and photoluminescence intensities of the Ba1.468Sr0.5SiO4: Eu0.012,Y0.02 phosphor powders were investigated. The phosphor powders obtained from the spray solution with the NH4Cl flux had higher photoluminescence intensities compared to phosphor powders obtained from the spray solution without the flux. The photoluminescence intensity of the phosphor powders obtained from the spray solution without the flux decreased as the flow rate of the fuel gas increased. On the other hand, the photoluminescence intensity of the phosphor powders obtained from the spray solution with the flux increased as the flow rate of the fuel gas increased. The difference of in the phase purity and morphology of the powders affected the photoluminescence intensities of the phosphor powders.

Keywords:phosphor;flame spray pyrolysis;flux material;light emitting diode

[References]

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Jiang L, Chang C, Mao D, Feng C, Mater. Sci. Eng. B, 103, 271 (2003)
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Poort SHM, Janssen W, Blasse G, J. Alloy. Compd., 260, 93 (1997)
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Pieper G, Eysel W, Hahn T, J. Am. Ceram. Soc., 55(12), 619 (1972)
Kim JS, Park YH, Kim SM, Choi JC, Park HL, Solid State Commun., 133, 445 (2005)
Byun JH, Kim CH, Park CH, Korean Patent, 306, 996B1 (2001)
Kang HS, Koo HY, Jung DS, Ju SH, Hong SK, Kang YC, Jung KY, Park SB, Korean J. Mater. Res., 15(6), 408 (2005)
Kang HS, Hong SK, Kang YC, Jung KY, Shul YG, Park SB, J. Alloy. Comp., 402, 246 (2005)
Kang HS, Kang YC, Jung KY, Park SB, Mater. Sci. Eng. B, 121, 81 (2005)

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[1] Hu Y, Zhuang W, Ye H, Wang D, Zhang S, Huang X, J. Alloy. Compd., 390, 226 (2005)

[2] Iwaya M, Terao S, Sano T, Ukai T, Nakamura T, Kamiyama S, Amano H, Akasaki I, J. Cryst. Growth, 237-239, 951 (2002)

[3] Edmond J, Abare A, Bergman M, Bharathan J, Bunker KL, Emerson D, Haberern K, Ibbetson J, Leung M, Russel P, Slater D, J. Cryst. Growth, 272(1-4), 242 (2004)

[4] Wang HX, Li HD, Lee YB, Sato H, Yamashita K, Sugahara T, Sakai S, J. Cryst. Growth, 264(1-3), 48 (2004)

[5] Jiang L, Chang C, Mao D, Feng C, Mater. Sci. Eng. B, 103, 271 (2003)

[6] Chang CK, Mao DL, Thin Solid Films, 460(1-2), 48 (2004)

[7] Barry TL, J. Electrochem., 115(11), 1181 (1968)

[8] Poort SHM, Janssen W, Blasse G, J. Alloy. Compd., 260, 93 (1997)

[9] Kim JS, Jeon PE, Choi JC, Park HL, Solid State Commun., 133, 187 (2005)

[10] Pieper G, Eysel W, Hahn T, J. Am. Ceram. Soc., 55(12), 619 (1972)

[11] Kim JS, Park YH, Kim SM, Choi JC, Park HL, Solid State Commun., 133, 445 (2005)

[12] Byun JH, Kim CH, Park CH, Korean Patent, 306, 996B1 (2001)

[13] Kang HS, Koo HY, Jung DS, Ju SH, Hong SK, Kang YC, Jung KY, Park SB, Korean J. Mater. Res., 15(6), 408 (2005)

[14] Kang HS, Hong SK, Kang YC, Jung KY, Shul YG, Park SB, J. Alloy. Comp., 402, 246 (2005)

[15] Kang HS, Kang YC, Jung KY, Park SB, Mater. Sci. Eng. B, 121, 81 (2005)