发明名称 |
Semiconductor light emitting device suppressing radiation of light other than light having desired wavelength |
摘要 |
A luminescence structure is formed on a substrate made of semiconductor or insulator. The luminescence structure has a lamination structure that an active layer made of semiconductor is sandwiched between a pair of clad layers made of semiconductor. The clad layer is made of the semiconductor having a band gap wider than an energy corresponding to a peak wavelength of an EL spectrum of the active layer. A carrier trap layer is disposed between the substrate and luminescence structure. A peak wavelength of an EL spectrum of the carrier trap layer is longer than a wavelength corresponding to a band gap of the substrate and the peak wavelength of the EL spectrum of the active layer. Electrodes are formed to inject current into the active layer.
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申请公布号 |
US2006146903(A1) |
申请公布日期 |
2006.07.06 |
申请号 |
US20050266655 |
申请日期 |
2005.11.03 |
申请人 |
STANLEY ELECTRIC CO., LTD. |
发明人 |
SASAKURA KEN;KAWAGUCHI KEIZO;ONO HANAKO |
分类号 |
H01S5/20;H01L33/06;H01L33/30;H01L33/40;H01S5/323 |
主分类号 |
H01S5/20 |
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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