Phosphor, light-emitting device, image display device, pigment, and ultraviolet absorber
AssigneeNational Institute for Materials Science
InventorsNaoto Hirosaki, Takashi Takeda, Shiro Funahashi, Eiichirou Narimatsu
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Abstract
Provided are an oxynitride phosphor comprising a JEM crystal as a main component and being characterized by light-emitting properties (light emission color or excitation property, light emission spectrum) that is different from the known JEM phosphor, and an application thereof. The phosphor of the present invention comprises the JEM crystal activated with Eu and represented by MAl(Si, Al)6(O, N)10 (where the M element is one or more elements selected from the group consisting of Ca, Sr, Eu, La, Sc, Y, and lanthanoid elements; and includes at least Eu as well as Ca and/or Sr).
Claims20
A phosphor comprising a JEM crystal activated with Eu and represented by MAl(Si, Al)6(O, N)10 (wherein an M element is one or two or more kinds of elements selected from a group consisting of Ca, Sr, Eu, La, Sc, Y, and lanthanoid elements;
- the M element includes at least Eu;
- and the M element includes Ca and/or Sr).
Dependencies are inferred from the claim text.