An Investigation of the Chromaticity of Blue Emitting Yttrium Silicate

Abstract

This investigation studied the effects of Ho3+ and Er3+ on the luminescence of the blue emitting phosphor yttrium silicate, (Y1-mCem)2SiO5. Yttrium silicate has a large emission tail that extends into the red portion of the visual spectrum. To improve the chromaticity of this phosphor to give it a more saturated blue color, the emission intensity of the tail needs to be decreased. Photoluminscence and low-voltage cathodoluminescence measurements were performed on yttrium silicate phosphors with varying concentrations of Gd3+, Ho3+ and Er3+. It was found that when co-doping with Ho3+ and Er3+, the relative intensity of the emission tail was decreased, but so to was the overall luminescence intensity of this phosphor.

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References

  1. 1.

    Y. Yoshida, A. Ishizuka, and H. Makishima, Materials Chemistry and Physics 40, 267–272 (1995).

    CAS  Article  Google Scholar 

  2. 2.

    A.G. Chakhovskoi, W.D. Kesling, J.T. Trujillo, and C.E. Hunt, J. Vac. Sci. Tech., B 12 (2), 785-89 (1994).

    CAS  Article  Google Scholar 

  3. 3.

    P. A. Keller, Information Display 12 (1), 18–22 (1996).

    Google Scholar 

  4. 4.

    E. J. Bosze, G. A. Hirata, J. McKittrick, and L. E. Shea in Flat-Panel Display Materials-1998, edited by G.N. Parsons, C.-C. Tsai, T.S. Fahlen, and C.H. Seager (Mat. Res. Soc. Proc.508, San Francisco, CA, 1998) 269–274.

    CAS  Google Scholar 

  5. 5.

    E. J. Bosze, G.A. Hirata, and J. McKittrick, presented at the 4th Inter. Nat. Conf. on the Sci. and Tech. of Display Phosphor, Society for Information Display, (1998), submitted.

  6. 6.

    J. Lin, Q. Su, H. Zhang, and S. Wang, Mat. Res. Bull. 31 (2), 189-96 (1996).

    CAS  Article  Google Scholar 

  7. 7.

    Phosphors measured by Phosphor Technology Center of Excellence, Georgia Tech, Atlanta.

  8. 8.

    G. Blasse, in Handbook on the Physics and Chemistry of Rare Earths, edited by J. K. A. Gschneidner and L.R. Eyring, (North-Holland Publishing Company, Amsterdam, 1979), p.237-74.

  9. 9.

    G. Blasse and B.C. Grabmaier, Luminescent Materials, (Springer-Verlag, Berlin, 1994).

    Google Scholar 

  10. 10.

    T. Kano, in Phosphor Handbook, edited by S. Shionya and W.M. Yen. (CRS Press, New York, 1999), p.177–199

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Correspondence to E. J. Bosze.

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Bosze, E.J., Hirata, G.A. & Mckittrick, J. An Investigation of the Chromaticity of Blue Emitting Yttrium Silicate. MRS Online Proceedings Library 558, 15–20 (1999). https://doi.org/10.1557/PROC-558-15

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