Method for producing inorganic compound, phosphor, phosphor-containing composition, light-emitting device, lighting system, and display device
US8178001B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2008 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | May 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8512
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for producing a CASN phosphor which has an emission peak wavelength in a long wavelength range and which is prevented from being reduced in emission peak intensity, a phosphor suitable for use in displays having a NTSC ratio higher than that of conventional one, a composition containing the phosphor, a light-emitting device containing the phosphor, a display, and a lighting system. A method for producing an inorganic compound represented by the following formula from a feedstock in which the amount of Si is greater than one mole and less than 1.14 moles per mole of Al:M1aM2bAlSiX3 (I)where M1 represents an activation element containing at least Eu, M2 represents one or more selected from alkaline-earth metal elements, X represents one or more selected from the group consisting of O and N, and a and b each represent a positive number satisfying the inequalities 0<a≦0.1 and 0.8≦a+b≦1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.