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    • 3. 发明授权
    • Led with alternated strain layer
    • 带交替应变层
    • US06417522B1
    • 2002-07-09
    • US09451357
    • 1999-12-02
    • Wang Nang WangStephen Sen-Tien Lee
    • Wang Nang WangStephen Sen-Tien Lee
    • H01L2715
    • H01L33/30B82Y20/00H01L33/06H01S5/3216H01S5/3406
    • The present invention relates to light omitting diodes having an AlGaInP active layer disposed between two cladding layers of AlGaInP, with a strain layer grown on the second cladding layer and comprising a superlattice structure in the form of a plurality of thin alternated AlGaInP layers with preselected composition. In one embodiment, the composition of the alternated AlGaInP layers is an ohmic n-electrode on a rear surface of a GaAs substrate: a distributed AlGaAs Bragg reflecting layer in the form of a multi-layer lamination; a first, lower AlGaInP cladding layer grown on the reflecting layer; an AlGaInP active layer grown on the lower cladding layer; a second, upper AlGaInP cladding layer grown on the active layer; a strain layer grown on the second cladding layer, the strain layer comprising a superlattice structure in the form of a plurality of thin alternated AlGaInP layers with the composition: (AlxGa1-x)1-yInyP/(AlnGa1-n)1-hInhP, where 0.5≦x≦1; 0.4≦y≦0.6/0≦a≦0.4; 0≦b≦0.4.
    • 本发明涉及具有设置在AlGaInP的两个包覆层之间的AlGaInP有源层的省略二极管,其中在第二覆层上生长的应变层包括具有预选组成的多个具有选定组成的交替AlGaInP层的超晶格结构 。 在一个实施例中,交替的AlGaInP层的组成是在GaAs衬底的后表面上的欧姆n电极:多层层叠形式的分布式AlGaAs布拉格反射层; 在反射层上生长的第一低AlGaInP包覆层; 在下包层上生长的AlGaInP有源层; 在有源层上生长的第二AlGaInP包层; 应变层,其包括具有以下组成的多个薄的交替AlGaInP层的超晶格结构:(Al x Ga 1-x)1-y In yP /(Al n Ga 1-n)1 -h InhP, 其中0.5 <= x <= 1; 0.4 <= y <= 0.6 / 0 <= a <= 0.4; 0 <=b≤0.4。
    • 5. 发明申请
    • CONCENTRATION PHOTOVOLTAIC CELL SYSTEM WITH LIGHT GUIDE
    • 浓缩光电池系统与光指导
    • US20090320901A1
    • 2009-12-31
    • US12145939
    • 2008-06-25
    • Sen-Tien LEEYen-Chang TZENGChin-Wei HSUChung-Yi HUANG
    • Sen-Tien LEEYen-Chang TZENGChin-Wei HSUChung-Yi HUANG
    • H01L31/042
    • H01L31/0543H01L31/0547Y02E10/52
    • A concentration photovoltaic cell system with light guide includes a concentrator for focusing sunlight; a light guide located at where the sunlight is focused by the concentrator, so that the focused light is fully coupled to an input end of the light guide and propagates to an output end of the light guide; and a solar energy converter arranged at the output end of the light guide for receiving and converting the light projected from the light guide into electric energy. With the above arrangements, the solar converter may be located at a place not exposed to sunlight to avoid lowered energy conversion efficiency caused by temperature rising at photovoltaic cell chips thereof, and the use of the light guide enables increased GCR and light concentrating efficiency to enable reduced number of expensive photovoltaic cells.
    • 具有光导的集中光伏电池系统包括用于聚焦太阳光的聚光器; 位于太阳光被聚光器聚焦的光导,使得聚焦的光完全耦合到光导的输入端并传播到光导的输出端; 以及布置在光导的输出端的太阳能转换器,用于接收并将从光导投影的光转换成电能。 通过上述布置,太阳能转换器可以位于不暴露于阳光的地方,以避免由于其太阳能电池芯片的温度升高而导致的能量转换效率降低,并且使用光导能够提高GCR和聚光效率,以使能 减少昂贵的光伏电池数量。