Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Synthesis and Luminescent Characterization of Eu2+/Dy3+-Doped Sr2MgSi2O7 Powders

Eu2+/Dy3+ 이온이 도핑된 Sr2MgSi2O7 분말 합성 및 발광 특성

  • Park, Jaehan (Department of Materials Science and Engineering, Kyonggi University) ;
  • Kim, Young Jin (Department of Materials Science and Engineering, Kyonggi University)
  • 박재한 (경기대학교 공과대학 신소재공학과) ;
  • 김영진 (경기대학교 공과대학 신소재공학과)
  • Received : 2014.10.13
  • Accepted : 2014.11.12
  • Published : 2014.12.27
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Abstract

$Eu^{2+}/Dy^{3+}$-doped $Sr_2MgSi_2O_7$ powders were synthesized using a solid-state reaction method with flux ($NH_4Cl$). The broad photoluminescence (PL) excitation spectra of $Sr_2MgSi_2O_7:Eu^{2+}$ were assigned to the $4f^7-4f^65d$ transition of the $Eu^{2+}$ ions, showing strong intensities in the range of 375 to 425 nm. A single emission band was observed at 470 nm, which was the result of two overlapping subbands at 468 and 507 nm owing to Eu(I) and Eu(II) sites. The strongest emission intensity of $Sr_2MgSi_2O_7:Eu^{2+}$ was obtained at the Eu concentration of 3 mol%. This concentration quenching mechanism was attributable to dipole-dipole interaction. The $Ba^{2+}$ substitution for $Sr^{2+}$ caused a blue-shift of the emission band; this behavior was discussed by considering the differences in ionic size and covalence between $Ba^{2+}$ and $Sr^{2+}$. The effects of the Eu/Dy ratios on the phosphorescence of $Sr_2MgSi_2O_7:Eu^{2+}/Dy^{3+}$ were investigated by measuring the decay time; the longest afterglow was obtained for $0.01Eu^{2+}/0.03Dy^{3+}$.

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References

  1. C. C. Lin and R. -S. Liu, J. Phys. Chem. Lett., 2, 1268 (2011). https://doi.org/10.1021/jz2002452
  2. J. McKittrick, M. E. Hannah, A. Piquette, J. K. Han, J. I. Choi, M. Anc, M. Galvez, H. Lugauer, J. B. Talbot and K. C. Mishra, ECS J. Solid State Sci. Technol., 2(2), R3119 (2013).
  3. M. E. Hannah, A. P. Piquette, M. Anc, J. McKittrick, J. Talbot, J. Han and K. C. Mishra, ECS Trans., 41(37), 19 (2012).
  4. Y. J. Park, S. H. Lee, W. K. Jang, C. B. Yoon and C. S. Yoon, J. Kor. Ceram. Soc., 47(6), 503 (2010). https://doi.org/10.4191/KCERS.2010.47.6.503
  5. E. Y. Lee, M. Nazarov and Y. J. Kim, J. Electrochem. Soc., 157(3), J102 (2010). https://doi.org/10.1149/1.3294556
  6. J. Park and Y. J. Kim, J. Kor. Ceram. Soc., 51(1), 37 (2014). https://doi.org/10.4191/kcers.2014.51.1.037
  7. Y. Yonesaki, T. Takei, N. Kumada and N. Kinomura, J. Solid State Chem., 182, 547 (2009). https://doi.org/10.1016/j.jssc.2008.11.032
  8. J. K. Park, K. J. Choi, C. H. Kim, H. D. Park and H. K. Kim, Electrochem. Solid State Lett., 7(10), H42 (2004). https://doi.org/10.1149/1.1787292
  9. J. Park and Y. J. Kim, J. Ceram. Process. Res., 15(3), 189 (2014).
  10. X. Zhang, X. Tang, J. Zhang, H. Wang, J. Shi and M. Gong, Powder Technol., 204, 263 (2010). https://doi.org/10.1016/j.powtec.2010.08.011
  11. Y. Lin, Z. Tang, Z. Zhang, X. Wang and J. Zhang, J. Mater. Sci., 20, 1505 (2001).
  12. W. Pan, G. Ning, X. Zhang, J. Wang, Y. Lin and J. Ye, J. Lumin., 128, 1975 (2008). https://doi.org/10.1016/j.jlumin.2008.06.009
  13. K. H. Kwon, W. B. Im and D. Y. Jeon, J. Nanosci. Nanotechnol., 13(6), 4079 (2013). https://doi.org/10.1166/jnn.2013.6999
  14. B. Liu, C. Shi, M. Yin, L. Dong and Z. Xiao, J. Alloy. Compd., 387, 65 (2005). https://doi.org/10.1016/j.jallcom.2004.06.061
  15. Y. Lin, Ce-W. Nan, X. Zhou, J. Wu, H. Wang, D. Chen and S. Xu, Mater. Chem. Phys., 82, 860 (2003). https://doi.org/10.1016/j.matchemphys.2003.07.015
  16. T. Kim, Y. Kim and S. Kang, Appl. Phys. B-Lasers Opt., 106, 1009 (2012). https://doi.org/10.1007/s00340-012-4914-z
  17. M. Kimata, Z. Kristall., 163, 295 (1983). https://doi.org/10.1524/zkri.1983.163.3-4.295
  18. G. Blasse, J. Solid State Chem., 207, 62 (1986).
  19. D. L. Dexter, J. Chem. Phys. 21, 836 (1953). https://doi.org/10.1063/1.1699044
  20. J. Park, S. J. Lee and Y. J. Kim, Cryst. Growth Des., 13, 5204 (2013). https://doi.org/10.1021/cg400751n
  21. S. Perkowitz, Optical characterization of semiconductors: infrared, raman, and photoluminescence spectroscopy, Academic Press, San Diego (1993).
  22. G. Blasse, W. L. Wanmaker, J. W. ter Vrugt and A. Bril, Philips Res. Rep., 23, 189 (1968).