Oxynitride orange-red fluorescent substance and light-emitting film or sheet and light-emitting device comprising the same
US9671086B2 · kind B2 · utility
1Cited by
0References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Feb 14, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An oxynitride orange-red fluorescent substance and a light-emitting film or sheet and a light-emitting device comprising the same are disclosed. The chemical formula of the oxynitride orange-red fluorescent substance is MmAaSixNyOz:dR in which the element M is one or more of the elements selected from Ca, Sr and Ba, the element A is Al or a mixture of Al with one or more of the elements selected from Ga, La, Sc and Y, the element R is one or more of the elements selected from Ce, Eu and Mn, 0.8≦m≦1.2, 1<a<1.7, 1<x<1.7, 3<y<4.2, 0<z<0.7, and 0.001≦d≦0.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.