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Synthesis and characterization of sol-gel derived hexa-aluminate phosphors

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Abstract

Two refractory phosphors, BaMg2Al16O27: Eu2+ (BAM) and MgAl11O17.5: Ce3+, Tb3+ (MAO), have been synthesized both by the conventional solid-state processing route (using oxides as the starting materials) and by reacting precursors made by the sol-gel process using organic precursors. The phases formed were reacted at 1000 °C in (a) steam and (b) steam + AlF3. The phosphors were well crystallized with particle sizes in the range of 1–10 μm. The emission spectra showed the characteristic broad band blue emission of Eu2+ for BAM and a narrow band green luminescence of Tb3+ for MAO. The melting points of BAM and MAO were measured to be 1920 ± 20 °C and 1950 ± 20 °C, respectively, using an Ir-strip furnace and optical pyrometer. BAM and MAO phosphor materials are congruently and incongruently melting, respectively. Excellent crystallization via the sol-gel route was found even at 1220 °C. Enhancement of the luminescent output by the steam treatment by some 25% was determined.

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References

  1. A. L. N. Stevels, J. Lumin. 17, 121 (1978).

    Article  CAS  Google Scholar 

  2. J. M. P. J. Verstegen and A. L. N. Stevels, J. Lumin. 9, 406 (1974).

    Article  CAS  Google Scholar 

  3. J. L. Sommerdijk and J. M. P. J. Verstegen, J. Lumin. 9, 415 (1974).

    Article  CAS  Google Scholar 

  4. B. M. J. Smets, Mater. Chem. Phys. 16, 283 (1987).

    Article  CAS  Google Scholar 

  5. A. Dutta and L. V. Dullea, U. S. Patent No. 5, 160, 663, Nov. 3, 1992.

  6. A. Bergstein and W. B. White, J. Electrochem. Soc. 118, 1166 (1971).

    Article  CAS  Google Scholar 

  7. A. W. deJayer-Veenis and A. Bril, J. Electrochem. Soc. 123, 1253 (1976).

    Article  Google Scholar 

  8. J. M. P. J. Verstegen, J. Solid State Chem. 7, 468 (1973).

    Article  CAS  Google Scholar 

  9. P. I. Bykovskii, L. P. Benderskaya, and N. G. Chernaya, Izv. Akad. Nauk SSSR, Neorg. Mater. 22, 1405 (1986).

    CAS  Google Scholar 

  10. C. R. Ronda and B. M. J. Smets, J. Electrochem. Soc. 136, 570 (1989).

    Article  CAS  Google Scholar 

  11. M. Gobbels, E. Woermann, and J. Jung, J. Solid State Chem. 120, 358 (1995).

    Article  Google Scholar 

  12. N. Iyi, M. Gobbels, and Y. Matsui, J. Solid State Chem. 120, 364 (1995).

    Article  CAS  Google Scholar 

  13. R. Roy, D. Ravichandran, and W. B. White, J. Soc. Inform. Display 4, 183 (1996).

    Article  Google Scholar 

  14. A. L. N. Stevels and A. D. M. Schrama-DePauw, J. Lumin. 14, 147 (1976).

    CAS  Google Scholar 

  15. A. Khan, A. M. Lejus, M. Madsac, J. Thery, D. Vivien, and J. C. Bernier, J. Appl. Phys. 52, 6864 (1981).

    Article  Google Scholar 

  16. D. Saber and A. M. Lejus, Mater. Res. Bull. 16, 1365 (1981).

    Article  Google Scholar 

  17. M. W. Shafer and R. Roy, J. Am. Ceram. Soc. 42, 563 (1959).

    Article  CAS  Google Scholar 

  18. R. Roy, D. Ravichandran, and W. B. White, Proc. of the 1st Int. Conf. on the Science and Tech. of Display Phosphors, pp. 197–200, San Diego, CA, Nov. 14–16, 1995.

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  1. Materials Research Laboratory, The Pennsylvania State University, 16802, University Park, Pennsylvania, USA

    D. Ravichandran, R. Roy, W. B. White & S. Erdei

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  1. D. Ravichandran
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  2. R. Roy
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  3. W. B. White
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  4. S. Erdei
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Ravichandran, D., Roy, R., White, W.B. et al. Synthesis and characterization of sol-gel derived hexa-aluminate phosphors. Journal of Materials Research 12, 819–824 (1997). https://doi.org/10.1557/JMR.1997.0119

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  • DOI: https://doi.org/10.1557/JMR.1997.0119

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