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Theoretical analysis of GaSb/GaAs QWIP

机译:GaSb / GaAs QWIP的理论分析

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摘要

This paper investigates a theoretical analysis of the inter-subband transition GaSb/GaAs quantum well infrared photodetector (QWIP) considering large valence band discontinuity. Performance parameters such as Eigen energy states, absorption coefficient as well as responsivity are obtained for bound to bound inter-subband transition of QWIP. The confinement energies for the first heavy- and light-hole states are obtained as 0.1718 eV and 0.4329 eV, respectively. A broad detection window of 2 to 5 urn with peak responsivity of about 53.8 μA/W at wavelength of 2.7 μm is obtained at 5 V bias voltage.
机译:本文研究了考虑大价带不连续性的子带间跃迁GaSb / GaAs量子阱红外光电探测器(QWIP)的理论分析。对于绑定到绑定的QWIP子带间跃迁,获得了诸如本征能态,吸收系数以及响应度之类的性能参数。获得的第一重空穴和轻空穴状态的限制能分别为0.1718 eV和0.4329 eV。在5 V偏置电压下,可获得2至5 um的宽检测窗口,在2.7μm的波长下峰值响应度约为53.8μA/ W。

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