Garnet-based phosphor doped with thorium and light emitting device using the same
US9493702B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Oct 21, 2013 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Oct 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/181
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a garnet-based phosphor doped with thorium and a light emitting device using the same. In particular, a garnet-based phosphor having superior light characteristics and heat stability by using thorium as an activator, when compared to a conventional garnet phosphor using cerium as an activator, and a light emitting device using the same as a light source are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.