用于长波光子器件的GaAs1-xSbx/GaAs单量子阱

Huang Hsiao-Tzu , Cao Wei , Lin Hao-Hsiung , Chin Yu-Chung
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引用次数: 6

摘要

本文研究了GaAs1-xSbx/GaAs单量子阱中的载流子动力学。当掺入Sb (x = 0.352, 0.405)时,光致发光(PL)峰表现出低温下GaAs1-xSbx和200 K以上GaAs的特征。在功率依赖的PL中,当局域激子和自由激子在10k时参与时,强度呈现亚线性功率关系。功率指数与SQW中存在的局部化能的程度一致,并通过推导相应的速率方程讨论了各种重组机制的载流子动力学。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
GaAs1-xSbx/GaAs single quantum well for long wavelength photonic devices

Carrier dynamics in GaAs1-xSbx/GaAs single quantum well (SQW) is investigated in this report. With Sb incorporation (x = 0.352, 0.405), the photoluminescence (PL) emission peaks exhibit characteristics of GaAs1-xSbx in low temperature and GaAs above 200 K. In power dependent PL, the intensities reveal sublinear power relationship as localized and free excitons are involved at 10 K. The power exponent is in agreement with the degree of localization energy present in SQW and carrier kinetics for various recombination mechanisms are also discussed by deriving respective rate equations.

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