Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Preparation and Luminescent Characteristics of Phosphate-Based Phosphors

포페이트계열 형광체의 합성 및 광특성 평가

  • Noh, Seh-Chul (Department of Chemistry, School of Advanced Sciences, Dankook University) ;
  • Kim, You-Hyuk (Department of Chemistry, School of Advanced Sciences, Dankook University)
  • 노세철 (단국대학교 첨단 과학부) ;
  • 김유혁 (단국대학교 첨단 과학부)
  • Published : 2002.01.01
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Abstract

In order to search new phosphors for plasma display panel(PDP), phosphate hosts which has a host excitation band at around 150nm were prepared and their luminescent properties were investigated. In the preparation of $YPO_4: Eu\; and\; (Y,Gd)PO_4: Eu$ phosphors, the effect of oxide and oxalate starting materials on prepared phosphors were compared in terms of relative emission intensities and particle characteristics. The results showed that oxalate starting materials gave better performance in emission intensities and smaller size and more round shape phosphors which would be more applicable for high resolution display. Additionally, Gd, V, Nb and Ta ions were doped to $YPO_4:Eu$ and the luminescent properties of the resulant solid solutions were investigated to find efficient sensitizer. Among these ions, Gd, V and Nb ions increased the emission intensities of parent phosphor to around 10%. While Nb ion gave the best result in emission intensities, CIE color coordinate were improved by doping V ion into $YPO_4:Eu$ phosphor to give x=0.6523, y=0.3406 compared to commercial sample.

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References

  1. Y.- W. Lee, in Proceedings of the 18th International Display Research Conference (Seoul, Korea, Sept. 1998) p. 5
  2. S. Matsumoto, Electronic Display Devices, John Wiley & Sons, New York (1984)
  3. F. Yoshimura and M. Yamakaya, in Proceedings of the Third International Display Workshops (Kobe, Japan, Nov. 1996) 2, p.77
  4. E. Nakazawa and F. Shiga, J. Luminescence, 15, 255 (1997) https://doi.org/10.1016/0022-2313(77)90024-2
  5. C.Kim, H. Bae, J. Byun and K.Hong, J. korean Chem Soc, 42,588 (1998)
  6. D. Sordelet and M. Akinc, J. Colloidal & Interface Sci. 122,47 (1988) https://doi.org/10.1016/0021-9797(88)90286-X
  7. S. Cho, S. Kwon, J. Yoo, C. Oh, J. Lee and K. Hoo, J. Electrochem. Soc., 147, 3143 (2000) https://doi.org/10.1149/1.1393872
  8. J. Lin, D.U. Sanger, M. Mennig and K. Barner, Material.s Science & Engineering, 864,73 (1999) https://doi.org/10.1016/S0921-5107(99)00155-5
  9. S.W. Lu, T. Copeland, B.I. Lee, W. Tong, B.K. Wagner, W. Park and F. Zhang, J. Phys. & Chem. Solid, 62, 777 (2001) https://doi.org/10.1016/S0022-3697(00)00252-3
  10. D.L. Dexter, and J. H. Schulman, J. Chem. Phys., 22, 1063 (1954) https://doi.org/10.1063/1.1740265
  11. S. Oshio and K. Kitamura, J. E1ectrochem. Soc., 146, 392 (1999) https://doi.org/10.1149/1.1391620
  12. Y.C. Kang and S.B. Park, J. Electrochem. Soc., 146, 2744 (1999) https://doi.org/10.1149/1.1392003
  13. G. Blasse and A. Bril, Philips Technical Review, 31. 304 (1970)
  14. G. Blasse and B.C. Grabmaier, Luminescent Materials p. 41 Springer-Verlag, (1994)
  15. S. Shionoya and W.M. Yen, Phosphor Handbook CRC Press, p.261 (1998)
  16. U. Rambabu and S. Buddhuda, Optical Materials, 17, 401 (2001) https://doi.org/10.1016/S0925-3467(00)00103-8
  17. T. Fukuzawa and S. Tanimizu, J. Luminescence, 16, 447 (1978) https://doi.org/10.1016/0022-2313(78)90041-8
  18. R.C. Ropp J. Electrochem. Soc., 112, 181 (1965) https://doi.org/10.1149/1.2423490
  19. Y. Shin, Y. Do and Y. Kim, Bull. Kor. Chem. Soc., 18, 1112 (1997)