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arXiv 1105.5767cond-mat.mes-hall
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双量子阱红外探测器中的迁移率调制效应

Mobility modulation effects in a double quantum well infrared photon-detector

Ting-Ting Kang, Susumu Komiyama, Takeji Ueda, Shi-Wei Lin, Sheng-Di Lin

摘要:

量子阱岛的电子通过子带间跃迁吸收光子能量,并获得足够的能量逃逸光子,从而使量子阱岛带正电,这一过程已被应用于双量子阱光子探测器中。在这里,我们提出了所谓的负光子响应在这样的探测器的观察。其原因是由于光生电荷引起的电子迁移率降低现象。

英文摘要:

An electrically isolated quantum well (QW) island can be positively charged by incoming infrared photon, because its electrons absorb photon energy via intersubband transition and acquire enough energy to escape it. This process has been used in a double QW photon-detector. Here, we present the observation of so-called negative photon-response in such detector. Its origin is clarified to be an electron mobility reduction phenomenon resulted from the photon induced charges.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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