Phosphor, light-emitting element and lighting device
US10266766B2 · kind B2 · utility
5Cited by
4References
8Claims
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Key dates
| Filing date | Nov 12, 2013 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Nov 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/854
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a Li-solid-solubilized α-SiAlON phosphor containing Li+ as solid solubilized for stabilization of the structure that is higher in luminous efficiency than before and a light-emitting element and a lighting device comprising the same.The (Li and Eu)-containing α-SiAlON crystal has a Li content of 1.8 to 3 mass %, an Eu content of 0.1 to 1.5 mass % and an average particle diameter, as determined by laser diffraction/scattering method, of 7 to 35 μm. The phosphor is used in the light-emitting element and the lighting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.