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US 12,612,550 B2Granted
Sintered body, light emitting device, wavelength conversion member, and method for manufacturing sintered body
AssigneeNichia Corporation
InventorTakeshi Sadamochi
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Abstract
Provided is a sintered body that has high heat dissipation and from which light can be emitted when excited by an excitation light source, a light emitting device, a wavelength conversion member, and a method for manufacturing the sintered body. The sintered body includes aluminum nitride and europium, has a thermal diffusivity of 27.0 mm2/s or greater as measured by a laser flash method at 25° C., and emits green light when excited by an excitation light source.
Claims21
A sintered body comprising:
- aluminum nitride, and
- europium,
- the sintered body having a thermal diffusivity that is 27.0 mm2/s or greater as measured by a laser flash method at 25° C., and emitting green light when excited by an excitation light source,
- wherein a content of the europium is in a range of 0.2 mass % to 1.7 mass % relative to a total amount of the sintered body.
1 more element
A sintered body comprising:
- aluminum nitride, and
- europium,
- the sintered body having a thermal diffusivity that is 55 mm2/s or greater as measured by a laser flash method at 25° C., and emitting green light when excited by an excitation light source.
A sintered body comprising:
- aluminum nitride, and
- europium,
- the sintered body having a thermal diffusivity that is 27.0 mm2/s or greater as measured by a laser flash method at 25° C., and emitting green light when excited by an excitation light source,
- wherein an apparent density is 2.5 g/cm3.
1 more element
Dependencies are inferred from the claim text.