发明申请
- 专利标题: Rare earth doped layer or substrate for light conversion
- 专利标题(中): 用于光转换的稀土掺杂层或衬底
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申请号: US11353647申请日: 2006-02-13
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公开(公告)号: US20070120129A1公开(公告)日: 2007-05-31
- 发明人: Steven DenBaars , Eric Tarsa , Michael Mack , Bernd Keller , Brian Thibeault , Adam Saxler
- 申请人: Steven DenBaars , Eric Tarsa , Michael Mack , Bernd Keller , Brian Thibeault , Adam Saxler
- 专利权人: Cree, Inc.
- 当前专利权人: Cree, Inc.
- 主分类号: H01L33/00
- IPC分类号: H01L33/00
摘要:
A solid state light emitting device comprising an emitter structure having an active region of semiconductor material and a pair of oppositely doped layers of semiconductor material on opposite sides of the active region. The active region emits light at a predetermined wavelength in response to an electrical bias across the doped layers. An absorption layer of semiconductor material is included that is integral to said emitter structure and doped with at least one rare earth or transition element. The absorption layer absorbs at least some of the light emitted from the active region and re-emits at least one different wavelength of light. A substrate is included with the emitter structure and absorption layer disposed on the substrate.
公开/授权文献
- US08829546B2 Rare earth doped layer or substrate for light conversion 公开/授权日:2014-09-09
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