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PREPARATION OF YTTRIUM-CERIUM-ALUMINUM GARNET PHOSPHOR

  • US 20130161849A1
  • Filed: 12/21/2012
  • Published: 06/27/2013
  • Est. Priority Date: 12/22/2011
  • Status: Abandoned Application
First Claim
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1. A method for preparing a yttrium-cerium-aluminum garnet phosphor comprising the steps of:

  • combining yttrium, cerium and aluminum compounds to form a raw material in which cerium is present in a concentration of 4 mol % to 15 mol % based on the sum of yttrium and cerium, and a molar ratio of aluminum to the sum of yttrium and cerium is from 5/3 to 5.5/3,granulating the raw material into particles with an average particle size of 5 to 100 μ

    m,melting the particles in a high-temperature plasma, andheat treating the resulting particles in a non-oxidizing atmosphere for crystallization.

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