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12 April 2023 Design of strain-adjustable Si0.1Ge0.78Sn0.12/Ge0.90Sn0.10/Si0.012Ge0.848Sn0.14 double-heterostructure SWIR photodetectors with giant magnetostrictive stressor
Qingfang Zhang, Qianyu Chen, Jitao Zhang, Wenxiang Lu, Pei Zhang, Zirui Qin, Lingzhi Cao, Genquan Han
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Proceedings Volume 12565, Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022); 125653H (2023) https://doi.org/10.1117/12.2663115
Event: Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022), 2022, Shanghai, China
Abstract
Group-IV Ge1-xSnx alloys have attracted much attention due to their optical properties and variable band structures. In this work, a strain-adjustable Si0.1Ge0.78Sn0.12/Ge0.90Sn0.10/Si0.012Ge0.848Sn0.14 double-heterostructure short-wave infrared photodetector with giant magnetostrictive stressor is designed and characterized theoretically. Adjustable uniaxial tensile strain from 0 to 0.11% is introduced into Ge0.90Sn0.10 photodetector by adjusting the external magnetic field range from 0eV to 240kA/m to realize a continuously adjustable bandgap of 0.534eV ~ 0.461eV, thus obtaining the detection wavelength between 2.32μm and 2.69μm in short-wave infrared, which provide new ideas for the integration of magnetic-force-electricaloptical devices and next-generation optical communication systems in SWIR.
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Qingfang Zhang, Qianyu Chen, Jitao Zhang, Wenxiang Lu, Pei Zhang, Zirui Qin, Lingzhi Cao, and Genquan Han "Design of strain-adjustable Si0.1Ge0.78Sn0.12/Ge0.90Sn0.10/Si0.012Ge0.848Sn0.14 double-heterostructure SWIR photodetectors with giant magnetostrictive stressor", Proc. SPIE 12565, Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022), 125653H (12 April 2023); https://doi.org/10.1117/12.2663115
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KEYWORDS
Tin
Germanium
Silicon
Photodetectors
Short wave infrared radiation
Magnetism
Infrared radiation
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