DMF effect on the morphology and the luminescence properties of Y2O3 : Eu3+ red phosphor prepared by spray pyrolysis

Kyeong Youl Jung; Yun Chan Kang; Young-Kwon Park

Journal of Industrial and Engineering Chemistry, Vol.14, No.2, 224-229, March, 2008

DOI10.1016/j.jiec.2007.09.011 Export Citation

DMF effect on the morphology and the luminescence properties of Y2O3 : Eu3+ red phosphor prepared by spray pyrolysis

Kyeong Youl Jung^†, Yun Chan Kang¹, and Young-Kwon Park²

Department of Chemical Engineering, Kongju National University, 182 Shinkwan-dong, Kongju, Chungnam 314-701, Korea
¹Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
²Faculty of Environmental Engineering, University of Seoul, 90 Jeonnong-dong, Dongdaemun-gu, Seoul 130-743, Korea

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N,N-Dimethylformamide (DMF) was used as a drying control chemical additive (DCCA) in spray pyrolysis in order to improve the luminous properties of Y2O3:Eu particles. It was found that the addition of DMF to the spray solution containing citric acid (CA) and ethylene glycol (EG) greatly enhances the photoluminescence intensity as well as the morphology of Y2O3:Eu particles. According to BET analysis, the surface area of Y2O3:Eu particles prepared from the solution containing only the organic additives was not reduced, whereas, the surface area of the Y2O3:Eu particles prepared from the solution containing both DMF and organic additives was decreased gradually as increasing the concentration of DMF. From these results, it was concluded that the adding of DMF to the spray solution containing the organic additives is a very effective way to reduce the porosity of phosphor particles, keeping the spherical morphology. As a result, the densification of porous structure led to greatly improve the photoluminescence intensity of Y2O3:Eu particles under ultraviolet (254 nm) excitation. Finally, the prepared Y2O3:Eu particles with dense structure showed about 208% improved photoluminescence intensity compared with the particles which have a spherical shape but porous structure. (C) 2008 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

Keywords:phosphor;yttrium oxide;spray pyrolysis;photoluminescence

[References]

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Jing X, Ireland T, Gibbons C, Barber DJ, Silver J, Vecht A, Fern G, Trowga P, Morton DC, J. Electrochem. Soc., 146(12), 4654 (1999)
Kang YC, Park SB, Lenggoro IW, Okuyama K, J. Phys. Chem. Solids, 60, 379 (1999)
Lee KK, Kang YC, Jung KY, Park HD, Electrochem. Solid State Lett., 5, H31 (2002)
Kang YC, Roh HS, Bin Park S, Adv. Mater., 12(6), 451 (2000)
Xia B, Lenggoro IW, Okuyama K, Chem. Mater., 14, 4969 (2002)
Shimomura Y, Kijima N, J. Electrochem. Soc., 151(4), H86 (2004)
Kang YC, Roh HS, Park SB, Park HD, J. Eur. Ceram. Soc., 22, 1661 (2002)
Li D, Clark BL, Keszler DA, Chem. Mater., 12, 268 (2000)
Williams DK, Bihari B, Tissue BM, McHale JM, J. Phys. Chem. B, 102(6), 916 (1998)
Konrad A, Almanstotter J, Reichardt J, Gahn A, Tidecks R, Samwer K, J. Appl. Phys., 85, 1796 (1999)
Yi SS, Bae JS, Moon BK, Jeong JH, Park JC, Kim IW, Appl. Phys. Lett., 81, 3344 (2002)
Sohn KS, Shin N, Kim YC, Do YR, Appl. Phys. Lett., 85, 55 (2004)
Tanner PA, Wong KL, J. Phys. Chem. B, 108(1), 136 (2004)
Lee JY, Tak YS, J. Ind. Eng. Chem., 5(2), 139 (1999)
Jung KY, Kim EJ, Kang YC, J. Ind. Eng. Chem., 11(2), 280 (2005)
Eun HT, Ko YS, J. Ind. Eng. Chem., 9(4), 348 (2003)
Yang H, Yan Y, Zhao D, J. Ind. Eng. Chem., 7, 1146 (2004)
Messing GL, Zhang SC, Jayanthi GV, J. Am. Ceram. Soc., 76, 2707 (1993)
Shon JR, Kang YC, Park HD, Jpn. J. Appl. Phys., 41, 3006 (2002)
Kim EJ, Kang YC, Park HD, Ryu SK, Mater. Res. Bull., 38, 515 (2003)

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[3] Kang YC, Park SB, Lenggoro IW, Okuyama K, J. Phys. Chem. Solids, 60, 379 (1999)

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[9] Li D, Clark BL, Keszler DA, Chem. Mater., 12, 268 (2000)

[10] Williams DK, Bihari B, Tissue BM, McHale JM, J. Phys. Chem. B, 102(6), 916 (1998)

[11] Konrad A, Almanstotter J, Reichardt J, Gahn A, Tidecks R, Samwer K, J. Appl. Phys., 85, 1796 (1999)

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[13] Sohn KS, Shin N, Kim YC, Do YR, Appl. Phys. Lett., 85, 55 (2004)

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[19] Messing GL, Zhang SC, Jayanthi GV, J. Am. Ceram. Soc., 76, 2707 (1993)

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