发明授权
- 专利标题： Emissive ceramic materials having a dopant concentration gradient and methods of making and using the same
- 专利标题（中）： 具有掺杂剂浓度梯度的发光陶瓷材料及其制造和使用方法
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申请号： US13306797申请日： 2011-11-29
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公开(公告)号： US08828531B2公开(公告)日： 2014-09-09
- 发明人: Guang Pan , Hiroaki Miyagawa , Hironaka Fujii , Bin Zhang , Rajesh Mukherjee , Toshitaka Nakamura , Amane Mochizuki
- 申请人： Guang Pan , Hiroaki Miyagawa , Hironaka Fujii , Bin Zhang , Rajesh Mukherjee , Toshitaka Nakamura , Amane Mochizuki
- 申请人地址： JP Osaka
- 专利权人： Nitto Denko Corporation
- 当前专利权人： Nitto Denko Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Knobbe Martens Olson & Bear LLP
- 主分类号： B32B3/26
- IPC分类号： B32B3/26 ; B32B18/00 ; C09K11/00 ; C09K11/80 ; C09K11/77 ; C04B35/638 ; C04B35/44 ; C04B35/626 ; H01L33/50
摘要：
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.
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