| 发明名称 | Thermally stable oxynitride phosphor and light source comprising such a phosphor | ||
| 摘要 | A thermally stable phosphor made of the M-Si—O—N system, having a cation M and an activator D, M being represented by Ba or Sr alone or as a mixture and optionally also being combined with at least one other element from the group Ca, Mg, Zn, Cu. The phosphor is activated with Eu or Ce or Tb alone or as a mixture, optionally in codoping with Mn or Yb. The activator D partially replaces the cation M. The phosphor is produced from the charge stoichiometry MO—SiO2—SiN4/3 with an increased oxygen content relative to the known phosphor MSi2O2N2:D, where MO is an oxidic compound. | ||
| 申请公布号 | US8808577(B2) | 申请公布日期 | 2014.08.19 |
| 申请号 | US200812671685 | 申请日期 | 2008.07.24 |
| 申请人 | OSRAM Gesellschaft mit beschrankter Haftung | 发明人 | Becker Daniel;Hempel Wolfram;Jermann Frank;Pohl Bianca |
| 分类号 | C09K11/77;C09K11/59;C09K11/08 | 主分类号 | C09K11/77 |
| 代理机构 | Cozen O'Connor | 代理人 | Cozen O'Connor |
| 主权项 | 1. A thermally stable phosphor made of the M-Si—O—N system, having a cation M and an activator D, M being represented by Ba or Sr alone or as a mixture and optionally also being combined with at least one other element from the group Ca, Mg, Zn, Cu, the phosphor being activated with Eu or Tb alone or as a mixture, optionally in codoping with Mn or Yb, the activator D partially replacing the cation M, and the phosphor emits green, wherein the phosphor is produced from the charge stoichiometry MO—SiO2—SiN4/3 with an increased oxygen content relative to the known phosphor MSi2O2N2:D, where MO is an oxidic compound, and the phosphor has the stoichiometry MaSib+3cOa+2bN4c, in which the ratio of b:c is from 4.8 to 9.0, wherein a is from 1 to 3. | ||
| 地址 | Munich DE | ||