Y3Al5O12:Tb phosphor particles prepared by spray pyrolysis from spray solution with polymeric precursors and ammonium fluoride flux

High brightness Y3Al5O12:Tb phosphor particles with spherical shape and fine size were prepared by spray pyrolysis from spray solution with polymeric precursors and ammonium fluoride flux. The effect of ammonium fluoride flux on the characteristics of the Y3Al5O12:Tb phosphor particles prepared by s...

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Published in:Materials letters 2005-08, Vol.59 (19-20), p.2383-2387
Main Authors: Lee, H.J., Hong, S.K., Jung, D.S., Kang, Y.C.
Format: Article
Language:English
Subjects:
Luminescence
Optical materials and properties
Phosphors
Powder technology
Spray pyrolysis
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container_title Materials letters
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creator Lee, H.J.
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Jung, D.S.
Kang, Y.C.
description High brightness Y3Al5O12:Tb phosphor particles with spherical shape and fine size were prepared by spray pyrolysis from spray solution with polymeric precursors and ammonium fluoride flux. The effect of ammonium fluoride flux on the characteristics of the Y3Al5O12:Tb phosphor particles prepared by spray pyrolysis was investigated. Ammonium fluoride flux dissolved into spray solution improved the photoluminescence intensity of the Y3Al5O12:Tb phosphor particles prepared by spray pyrolysis. The optimum addition amount of ammonium fluoride flux to produce the maximum photoluminescence intensity was 1 wt.% of the Y3Al5O12:Tb phosphor particles. The spherical shape of the as-prepared particles obtained by spray pyrolysis from spray solution with polymeric precursors and small amount of ammonium fluoride flux had maintained after post-treatment below 1300 °C. The optimum photoluminescence intensity of the Y3Al5O12:Tb phosphor particles prepared from polymeric precursors and ammonium fluoride flux was 156% of that of the phosphor particles prepared from pure aqueous solution.
doi_str_mv 10.1016/j.matlet.2005.02.083
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The effect of ammonium fluoride flux on the characteristics of the Y3Al5O12:Tb phosphor particles prepared by spray pyrolysis was investigated. Ammonium fluoride flux dissolved into spray solution improved the photoluminescence intensity of the Y3Al5O12:Tb phosphor particles prepared by spray pyrolysis. The optimum addition amount of ammonium fluoride flux to produce the maximum photoluminescence intensity was 1 wt.% of the Y3Al5O12:Tb phosphor particles. The spherical shape of the as-prepared particles obtained by spray pyrolysis from spray solution with polymeric precursors and small amount of ammonium fluoride flux had maintained after post-treatment below 1300 °C. 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subjects Luminescence
Optical materials and properties
Phosphors
Powder technology
Spray pyrolysis
title Y3Al5O12:Tb phosphor particles prepared by spray pyrolysis from spray solution with polymeric precursors and ammonium fluoride flux
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