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Effect of NH4F Flux on the Characteristics of Barium Strontium Silicate Phosphor Particles

NH4F 융제가 바륨 스트론튬 실리케이트계 형광체의 특성에 미치는 영향

  • Kang Hee Sang (Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology) ;
  • Koo Hye Young (Department of Chemical Engineering, Konkuk University) ;
  • Jung Dae Soo (Department of Chemical Engineering, Konkuk University) ;
  • Ju Seo Hee (Department of Chemical Engineering, Konkuk University) ;
  • Hong Seung Kwon (Department of Chemical Engineering, Konkuk University) ;
  • Kang Yun Chan (Department of Chemical Engineering, Konkuk University) ;
  • Jung Kyeong Youl (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Park Seung Bin (Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology)
  • 강희상 (한국과학기술원 생명화학공학과) ;
  • 구혜영 (건국대학교 화학공학과) ;
  • 정대수 (건국대학교 화학공학과) ;
  • 주서희 (건국대학교 화학공학과) ;
  • 홍승권 (건국대학교 화학공학과) ;
  • 강윤찬 (건국대학교 화학공학과) ;
  • 정경열 (한국화학연구원 화학소재부) ;
  • 박승빈 (한국과학기술원 생명화학공학과)
  • Published : 2005.06.01

Abstract

[ $Ba_{1.5}Sr_{0.5}SiO_4:Eu$ ] phosphor particles with high photoluminescence intensity under long wavelength ultraviolet were prepared by spray pyrolysis. We investigated the effect of $NH_4F$ flux added into starting solution on the morphology and photoluminescence intensity of $Ba_{1.5}Sr_{0.5}SiO_4:Eu$ phosphor prepared by spray pyrolysis. $Ba_{1.5}Sr_{0.5}SiO_4:Eu$ phosphor particles prepared from starting solution containing $NH_4F$ flux had the maximum photoluminescence intensity at the post-treatment temperature of $1200^{\circ}C$ and the maximum photoluminescence intensity of $Ba_{1.5}Sr_{0.5}SiO_4:Eu$ phosphor particles prepared from the starting solution containing $NH_4F$ flux was $137\%$ of that of the phosphor particles prepared from the starting solution without flux material. $Ba_{1.5}Sr_{0.5}SiO_4:Eu$ phosphor particles prepared from starting solution containing $NH_4F$ flux had larger size and more aggregated morphology than those prepared from starting solution without flux material. The photoluminescence intensity of $Ba_{1.5}Sr_{0.5}SiO_4:Eu$ phosphor particles prepared from starting solution containing $NH_4F$ flux above $3wt.\%$ had high photoluminescence intensities. The addition amount of $NH_4F$ flux showing the maximum photoluminescence intensity was $12wt.\%$. The optimum amount of $NH_4F$ flux was $5wt.\%$ when we considered the morphological and photoluminescence characteristics of $Ba_{1.5}Sr_{0.5}SiO_4:Eu$ ohosphor particles prepared by spray pyrolysis.

Keywords

References

  1. S. Nakamura and G. Fasol, The Blue Laser Diode, Springer, Berlin, Germany (1997)
  2. M. Iwaya, S. Terao, T. Sano, T. Ukai, R. Nakamura, S. Kamiyama, H. Amano and I. Akasaki, J. Cryst. Growth, 237-239, 951 (2002) https://doi.org/10.1016/S0022-0248(01)02011-5
  3. J. Edmond, A. Abare, M. Bergman, J. Bharathan, K. L. Bunker, D. Emerson, K. Haberern, J. Ibbetson, M. Leung, P. Russel and D. Slater, J. Cryst. Growth, 272, 242 (2004) https://doi.org/10.1016/j.jcrysgro.2004.08.056
  4. H. X. Wang, H. D. Li, Y. B. Lee, H. Sato, K. Yamashita, T. Sugahara and S. Sakai, J. Cryst. Growth, 264, 48 (2004) https://doi.org/10.1016/j.jcrysgro.2003.12.030
  5. E. Danielson, M. Devenney, D. M. Giaquinta, J. H. Golden, R. C. Haushalter, E. W. McFarland, D. M. Poojary, C. M. Reaves, W. H. Weinberg and X. D. Wu, Science, 279(6), 837 (1998) https://doi.org/10.1126/science.279.5352.837
  6. V. Z. Mordkovich, H. Hayashi, M. Haemori, T. Fukumura and M. Kawasaki, Adv. Funct. Mater., 13(7), 519 (2003) https://doi.org/10.1002/adfm.200304335
  7. J. L. Wu, E. Danielson, S. P. Denbaars, M. Devenney, E. McFarland, V. Srdanov and H. Weinberg, Proc. SPIE, 4445, 70 (2001) https://doi.org/10.1117/12.450030
  8. H. S. Roh, Y. C. Kang and S. B. Park, J. Colloid Interf. Sci., 228, 195 (2000) https://doi.org/10.1006/jcis.2000.6947
  9. K. Vanheusden, C. H. Seager, W.L. Warren, D.R. Tallant, J. Caruso, M.J. Hampden-Smith and T.T. Kodas, J. Lumin., 75, 11 (1997) https://doi.org/10.1016/S0022-2313(96)00096-8
  10. I. W Lenggoro, B. Xia, H. Mizushima, K. Okuyama and N. Kijima, Mater. Lett., 50, 92 (2001) https://doi.org/10.1016/S0167-577X(00)00422-5
  11. J. R. Shon, Y. C. Kang, H. D. Park and S. K. Yoon, Kor. J. Mater. Res., 12, 555 (2002) https://doi.org/10.3740/MRSK.2002.12.7.555
  12. T. L. Barry, J. Electrochem. Soc., 115, 1181 (1968) https://doi.org/10.1149/1.2410935

Cited by

  1. Green-Emitting Silicate Phosphor Under Long Wavelength Ultraviolet Prepared by High Temperature Flame Spray Pyrolysis vol.18, pp.2, 2008, https://doi.org/10.3740/MRSK.2008.18.2.077