发明名称 |
TYPE II BROADBAND OR POLYCHROMATIC LED'S |
摘要 |
<p>An LED is provided comprising two or more light-emitting Type II interfaces wherein at least two of the Type II interfaces differ in transition energy by at least 5%, or more typically by at least 10%, and wherein at least one of the Type II interfaces is within a pn junction. Alternately, an LED is provided comprising two or more light-emitting Type II interfaces wherein at least two of the Type II interfaces differ in transition energy by at least 5%, or more typically by at least 10%. The Type II interfaces may include interfaces from a layer which is an electron quantum well and not a hole quantum well, interfaces to a layer which is a hole quantum well and not an electron quantum well; and interfaces that satisfy both conditions simultaneously. The Type II interfaces may be within a pn or pin junction or not within a pn or pin junction. In the later case, emission from the Type II interfaces may be photopumped by a nearby light source. The LED may be a white or near-white light LED. In addition, graphic display devices and illumination devices comprising the semiconductor device according to the present invention are provided.</p> |
申请公布号 |
WO2006062615(A1) |
申请公布日期 |
2006.06.15 |
申请号 |
WO2005US39100 |
申请日期 |
2005.10.28 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
MILLER, THOMAS J.;HAASE, MICHAEL, A. |
分类号 |
H01L33/06;H01L33/08;H01L33/28 |
主分类号 |
H01L33/06 |
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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