发明名称 |
Roughened high refractive index layer/LED for high light extraction |
摘要 |
A light emitting diode (LED) includes a p-type layer of material, an n-type layer of material and an active layer between the p-type layer and the n-type layer. A roughened layer of transparent material is adjacent one of the p-type layer of material and the n-type layer of material. The roughened layer of transparent material has a refractive index close to or substantially the same as the refractive index of the material adjacent the layer of transparent material, and may be a transparent oxide material or a transparent conducting material. An additional layer of conductive material may be between the roughened layer and the n-type or p-type layer. |
申请公布号 |
US8674375(B2) |
申请公布日期 |
2014.03.18 |
申请号 |
US20050187075 |
申请日期 |
2005.07.21 |
申请人 |
DENBAARS STEVEN P.;IBBETSON JAMES;NAKAMURA SHUJI;CREE, INC. |
发明人 |
DENBAARS STEVEN P.;IBBETSON JAMES;NAKAMURA SHUJI |
分类号 |
H01L27/15;H01L29/26;H01L31/12;H01L33/00;H01L33/22;H01L33/42 |
主分类号 |
H01L27/15 |
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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