Based on the core/shell type composition of europium, yttrium oxide or gadolinium oxide compound, comprise luminescent material of this composition and preparation method thereof

Based on the core/shell type composition of europium, yttrium oxide or gadolinium oxide compound, comprise luminescent material of this composition and preparation method thereof

  • CN 102,356,142 B
  • Filed: 03/25/2010
  • Issued: 04/13/2016
  • Est. Priority Date: 03/30/2009
  • Status: Active Grant
First Claim
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1. composition, is characterized in that particle that said composition is 1.6-15 μ

  • m by mean diameter is formed and said composition comprises;

    -inorganic core, this inorganic core based on lanthanum orthophosphate, ortho-phosphoric acid gadolinium or ortho-phosphoric acid yttrium, or is selected from the oxide compound of yttrium oxide, gadolinium oxide compound, Zirconium oxide and aluminum oxide;

    With-shell, based on europium oxide compound and yttrium oxide or gadolinium oxide compound and with this inorganic core of thickness uniform fold being more than or equal to 300nm.

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