发明名称 |
EMISSIVE CERAMIC MATERIALS HAVING A DOPANT CONCENTRATION GRADIENT AND METHODS OF MAKING AND USING THE SAME |
摘要 |
<p>Disclosed herein are emissive ceramic materials having a dopant concentration gradient along a thickness of a yttrium aluminum garnet (YAG) region. The dopant concentration gradient may include a maximum dopant concentration, a half-maximum dopant concentration, and a slope at or near the half-maximum dopant concentration. The emissive ceramics may, in some embodiments, exhibit high internal quantum efficiencies (IQE). The emissive ceramics may, in some embodiments, include porous regions. Also disclosed herein are methods of make the emissive ceramic by sintering an assembly having doped and non-doped layers.</p> |
申请公布号 |
EP2646524(A1) |
申请公布日期 |
2013.10.09 |
申请号 |
EP20110797078 |
申请日期 |
2011.11.29 |
申请人 |
NITTO DENKO CORPORATION |
发明人 |
PAN, GUANG;MIYAGAWA, HIROAKI;FUJII, HIRONAKA;ZHANG, BIN;MUKHERJEE, RAJESH;NAKAMURA, TOSHITAKA;MOCHIZUKI, AMANE |
分类号 |
C09K11/80;H01L33/50 |
主分类号 |
C09K11/80 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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