Optical energy conversion
    6.
    发明授权
    Optical energy conversion 失效
    光能转换

    公开(公告)号:US4202704A

    公开(公告)日:1980-05-13

    申请号:US968887

    申请日:1978-12-13

    IPC分类号: H01L31/04 H01L31/055

    CPC分类号: H01L31/055 Y02E10/52

    摘要: Enhanced efficiency can be achieved in the construction of semiconductor optical energy conversion devices such as solar cells by providing a translucent frequency shifting supporting member with appropriate doping such as Al.sub.2 O.sub.3 :Cr.sup.+3 (Ruby) that is capable of shifting the wavelength of incident light energy in the direction of greatest efficiency of the semiconductor device. The efficiency can be further enhanced by providing a crystal perfection accommodation region between the active region of the device and the light frequency shifting substrate.

    摘要翻译: 通过提供具有适当掺杂的半透明变频支撑构件,例如能够移动入射光能量的波长的Al 2 O 3 :Cr + 3(红宝石),可以在诸如太阳能电池的半导体光能转换装置的构造中实现增强的效率 在半导体器件效率最高的方向。 通过在器件的有源区域和光变换衬底之间提供晶体完整的容纳区域可以进一步提高效率。

    Method of making a compound semiconductor having metallic inclusions
    10.
    发明授权
    Method of making a compound semiconductor having metallic inclusions 失效
    制造具有金属夹杂物的化合物半导体的方法

    公开(公告)号:US5471948A

    公开(公告)日:1995-12-05

    申请号:US240880

    申请日:1994-05-11

    CPC分类号: H01L31/0232 H01L31/105

    摘要: A doped or undoped photoresponsive material having metallic precipitates, and a PiN photodiode utilizing the material for detecting light having a wavelength of 1.3 micrometers. The PiN photodiode includes a substrate having a first compound semiconductor layer disposed thereon. The PiN photodiode further includes an optically responsive compound semiconductor layer disposed above the first compound semiconductor layer. The optically responsive layer includes a plurality of buried Schottky barriers, each of which is associated with an inclusion within a crystal lattice of a Group III-V material. The PiN device also includes a further compound semiconductor layer disposed above the optically responsive layer. For a transversely illuminated embodiment, waveguiding layers may also be disposed above and below the PiN structure. In one example the optically responsive layer is comprised of GaAs:As. The GaAs:As exhibits a very low room temperature dark current, even under forward bias conditions, and a responsivity to 1.3 micrometer radiation modulated at frequencies greater than 1 GHz.

    摘要翻译: 具有金属沉淀物的掺杂或未掺杂的光响应材料,以及利用该材料用于检测波长为1.3微米的光的PiN光电二极管。 PiN光电二极管包括其上设置有第一化合物半导体层的基板。 PiN光电二极管还包括设置在第一化合物半导体层上方的光学响应化合物半导体层。 光学响应层包括多个埋置的肖特基势垒,其中每个都包含在III-V族材料的晶格内。 PiN器件还包括设置在光学响应层上方的另一化合物半导体层。 对于横向照明的实施例,也可以在PiN结构的上方和下方设置波导层。 在一个实例中,光响应层由GaAs:As组成。 GaAs:As表现出非常低的室温暗电流,即使在正向偏置条件下,并且对频率大于1 GHz的1.3微米辐射的响应度也是如此。