Journal of Infrared and Millimeter Waves, Volume. 41, Issue 5, 804(2022)

Planar wavelength-extended In0.75Ga0.25As detector with 2.2-μm cut-off wavelength

Ji-Feng CHENG1,2,3, Xue LI1,2、*, Xiu-Mei SHAO1,2, Tao LI1,2, Hong-Zhen WANG1,2,3, Ying-Jie MA1,2, Bo YANG1,2, and Hai-Mei GONG1,2、**
Author Affiliations
  • 1State Key Laboratories of Transducer Technology,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China
  • 2Key Laboratory of Infrared Imaging Materials and Detectors,Chinese Academy of Sciences,Shanghai 200083,China
  • 3University of the Chinese Academy of Sciences,Beijing 100049,China
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    Figures & Tables(11)
    The cross section scheme of planar type InGaAs detector
    The microscopic picture of 7×1 linear arrays
    P-n junction depth of epitaxial layer by SCM
    (a)LBIC mapping and(b)the lateral LBIC signal of the 100×100 μm2 detector at 150 K
    Dark current density curves ranging from 150 K to 300 K for the detector
    Temperature-dependent reversed I-V characteristics
    Relationship of P/A and Current density at 180 K for the 7×1 linear arrays
    Spectrum response of detectors versus temperature
    Signal and noise versus temperature
    • Table 1. Size of each pixel of 7×1 linear arrays

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      Table 1. Size of each pixel of 7×1 linear arrays

      1234567
      光敏元尺寸/μm230×3050×50100×100120×120150×150200×200500×500
    • Table 2. The measured peak wavelength, peak responsivity and quantum efficiency at different temperatures

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      Table 2. The measured peak wavelength, peak responsivity and quantum efficiency at different temperatures

      温度

      /K

      截止波长/μm峰值波长/μmG

      峰值响应率

      A/W

      量子效率%
      1302.101.95221.2781
      1502.121.97211.2982
      1702.141.98201.3082
      1902.161.98191.3183
      2102.181.99181.3283
      2302.202.00171.3484
      2502.222.01161.3584
      2702.242.02151.3583
      2902.262.03141.3684
      3002.272.03131.3080
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    Ji-Feng CHENG, Xue LI, Xiu-Mei SHAO, Tao LI, Hong-Zhen WANG, Ying-Jie MA, Bo YANG, Hai-Mei GONG. Planar wavelength-extended In0.75Ga0.25As detector with 2.2-μm cut-off wavelength[J]. Journal of Infrared and Millimeter Waves, 2022, 41(5): 804

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    Paper Information

    Category: Research Articles

    Received: Feb. 15, 2022

    Accepted: --

    Published Online: Feb. 6, 2023

    The Author Email: Xue LI (hmgong@mail.sitp.ac.cn), Hai-Mei GONG (lixue@mail.sitp.ac.cn)

    DOI:10.11972/j.issn.1001-9014.2022.05.002

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