| 简介 |
Processes for producing particles of rare earth-containing phosphor materials, in which the particles have a core-shell structure and the shell has a lower rare earth content than the core include contacting a core particle with a precursor comprising Na(La, Ce, Tb)P 2 O 7 to form a mixture, and then heating the mixture to a temperature sufficient to decompose the Na(La, Ce, Tb)P 2 O 7 to evolve and melt an NaPO 3 flux and initiate deposition of a (La, Ce, Tb)PO 4 shell on each core particle in the presence of the molten NaPO 3 flux. |
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