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Method of producing cerium-activated phosphor of improved characteristic

机译:具有改善的特性的铈激活的磷光体的制造方法

摘要

A phosphor expressed fundamentally as YA10.sub.3 :Ce is produced through baking under a usual condition of a mixture of Y.sub.2 O. sub.3, Al.sub.2 O.sub.3, CeO.sub.2 and a controlled amount of barium compound exemplified by BaCO.sub.3, BaO, Ba(OH).sub.2 and BaF.sub.2. The presence of the barium compound in the mixture causes intensification of ultraviolet emission and/or suppression of the formation of blue-emitting Y.sub.3 Al.sub.5 O.sub.12 :Ce. The use of BaF.sub.2 as the barium compound or partial replacement of at least one of Y.sub.2 O.sub.3 and Al. sub.2 O.sub.3 respectively by YF.sub.3 and AlF.sub.3 is favorable to the intensification of the ultraviolet emission.
机译:通过在通常的Y 2 O 3,Al 2 O 3,CeO 3的混合物的条件下烘烤,产生基本上表示为YA10 3:Ce的磷光体。 2的钡化合物和控制量的钡化合物,例如BaCO.sub.3,BaO,Ba(OH).2和BaF.sub.2。混合物中钡化合物的存在会导致紫外线发射增强和/或抑制发蓝光的Y.3 Al.sub.5 O.sub.12:Ce的形成。使用BaF.2作为钡化合物或部分取代Y.2 O.3和Al中的至少一种。 YF.sub.3和AlF.sub.3各自的sub.2 O.3有利于增强紫外线发射。

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