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Enhanced photoluminescent emission of thin phosphor films via pulsed excimer laser melting

Published online by Cambridge University Press:  31 January 2011

J. McKittrick ,
G. A. Hirata ,
C. F. Bacalski ,
R. Sze ,
J. Mourant ,
K. M. Hubbard ,
S. Pattilo ,
K. V. Salazar ,
M. Trkula  and
T. R. Gosnell
J. McKittrick
Affiliation:
Department of Applied Mechanics and Engineering Sciences and Materials Science Program, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093–0411
G. A. Hirata
Affiliation:
Department of Applied Mechanics and Engineering Sciences and Materials Science Program, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093–0411
C. F. Bacalski
Affiliation:
Department of Applied Mechanics and Engineering Sciences and Materials Science Program, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093–0411
R. Sze
Affiliation:
Department of Applied Mechanics and Engineering Sciences and Materials Science Program, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093–0411
J. Mourant
Affiliation:
Department of Applied Mechanics and Engineering Sciences and Materials Science Program, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093–0411
K. M. Hubbard
Affiliation:
Department of Applied Mechanics and Engineering Sciences and Materials Science Program, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093–0411
S. Pattilo
Affiliation:
Department of Applied Mechanics and Engineering Sciences and Materials Science Program, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093–0411
K. V. Salazar
Affiliation:
Department of Applied Mechanics and Engineering Sciences and Materials Science Program, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093–0411
M. Trkula
Affiliation:
Department of Applied Mechanics and Engineering Sciences and Materials Science Program, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093–0411
T. R. Gosnell
Affiliation:
Department of Applied Mechanics and Engineering Sciences and Materials Science Program, University of California at San Diego, 9500 Gilman Drive, La Jolla, California 92093–0411
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Abstract

Thin films of (Y0.92Eu0.08)2O3 were synthesized through chemical vapor deposition of β-diketonate precursors onto glass and sapphire substrates. The films were weakly luminescent in the as-deposited condition and were composed of spherical particles 3 μm in diameter. A KrF laser was pulsed for 25 ns from 1–3 times on the surface of the films. One pulse was sufficient to melt the film and repeated pulses caused ablation of the material. Melting of the film smoothed the surface, increased the density, and increased the photoluminescent emission intensity.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 11 , November 1998 , pp. 3019 - 3021
Copyright
Copyright © Materials Research Society 1998

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References

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