PHOSPHOR MATERIAL AND LIGHT-EMITTING DEVICE

A phosphor material according to an embodiment of the present disclosure contains a major component represented by the formula A2-v-w-x-yBvLnwEuxSmyM2-zDzO8, where A is one or more elements selected from the group consisting of alkaline-earth metal elements; B is one or more elements selected from t...

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Bibliographic Details
Main Authors INOUE OSAMU, NITTA MITSURU, OKUYAMA KOJIRO, SHIRAISHI SEIGO
Format Patent
LanguageEnglish
Published 04.06.2015
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Summary:A phosphor material according to an embodiment of the present disclosure contains a major component represented by the formula A2-v-w-x-yBvLnwEuxSmyM2-zDzO8, where A is one or more elements selected from the group consisting of alkaline-earth metal elements; B is one or more elements selected from the group consisting of alkali metal elements; Ln is one or more elements selected from the group consisting of rare-earth elements other than Eu and Sm; M is one or more elements selected from the group consisting of W and Mo; D is one or more elements selected from the group consisting of Nb and Ta; and v, w, x, y, and z satisfy the inequalities 0 v 0.5, 0.15 x+y 0.7, 0 y 0.05, and 0<z 1.7 and the equation w+x+y=v+z.
Bibliography:Application Number: US201414553024