| 简介 |
A light emitting device is provided. The light emitting device includes a light emitting element that emits ultraviolet light or short-wavelength visible light; and at least one phosphor that is excited by the ultraviolet light or short-wavelength visible light to emit visible light. The at least one phosphor includes a first phosphor including a composition represented by the formula : M 1 O 2 -aM 2 O-bM 3 X 2 : M 4 , where M 1 is at least one element selected from the group consisting of Si, Ge, Ti, Zr, and Sn; M 2 is at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn; M 3 is at least one element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn; X is at least one halogen element; M 4 is at least one element essentially including Eu 2+ selected from the group consisting of rare-earth elements and Mn; a is in the range of 0.1 ‰¤ a ‰¤ 1.3; and b is in the range of 0.1 ‰¤ b ‰¤ 0.25. |
客服热线：
手机版
二维码
