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公开(公告)号:EP3039723A4
公开(公告)日:2017-05-10
申请号:EP14859482
申请日:2014-08-27
发明人: PERERA A G UNIL , LAO YANFENG
IPC分类号: H01L31/0232
CPC分类号: H01L31/1075 , G01J1/0209 , G01J1/42 , G01J1/46 , G01J5/022 , H01L31/03046 , H01L31/101 , H01L31/147
摘要: Various examples are provided for hot carrier spectral photodetectors that can be tuned. In one example, among others, a hot-carrier photodetector includes a graded barrier; an absorber disposed on the graded barrier; and a second barrier disposed on the absorber. For example, the absorber can include p-type doped GaAs. The graded barrier is disposed between the absorber and an injector, which can include p-type doped GaAs. In some implementations, the hot-carrier detector can include multiple barriers and absorbers. The hot-carrier photodetector can include an optical source (e.g., a LED) to trigger the VLWIR response in the photodetector.
摘要翻译: 提供了可以调谐的热载流子谱光电探测器的各种示例。 在一个实例中,其中,热载流子光电探测器包括分级屏障; 设置在分级屏障上的吸收器; 和设置在吸收体上的第二屏障。 例如,吸收体可以包括p型掺杂的GaAs。 梯度阻挡层设置在吸收器和可以包括p型掺杂GaAs的注入器之间。 在一些实施方式中,热载流子检测器可以包括多个屏障和吸收器。 热载流子光电探测器可以包括光源(例如LED)以触发光电探测器中的VLWIR响应。