Phosphor, method of manufacturing the same, and light-emitting device
US8674388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2010 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Aug 25, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/181
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is a phosphor expressed by the general formula (A1−xRxM2X)m(M2X4)n (wherein the element A is one or more types of element selected from Li, Na, Be, Mg, Ca, Sr, Ba, Sc, Y, La, Gd, and Lu, the element R is one or more types of activating agent selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb, the element M is one or more types of element selected from Si, Ge, Sn, Ti, Hf, Zr, Be, B, Al, Ga, In, Tl, and Zn, the element X is one or more types of element selected from oxygen and nitrogen, n and m are integers of 1 or more, and x is a real number defined by 0<x<1), as well as a manufacturing method for the same, and a light-emitting device that uses this phosphor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.