| 摘要 |
A phosphor of the alpha-sialon type is provided, wherein the general empirical formula is M1p/2Si12−p−qAlp+qOqN16−q:D; where M1 is one or more elements from the group Li, Mg, Ca, Y and the lanthanoids with the exception of Ce and La; D is a co-doping consisting of M2 and Mn, where M2=one or more elements from the group Ce, Pr, Eu, Tb, Yb and Er; in this situation q=0 to 2.5 and p=0.5 to 4 is chosen.
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