Journal of Infrared and Millimeter Waves, Volume. 41, Issue 4, 721(2022)

Terahertz photodetector based on two-dimensional tellurene

Wen-Chao HUANG1, Kai-Xuan ZHANG2, Yun-Xia LI1, and Lin WANG3、*
Author Affiliations
  • 1School of Mathematics and Physics,Lanzhou Jiaotong University,Lanzhou 730070,China
  • 2College of Science,Donghua University,Shanghai 201620,China
  • 3Shanghai Institute of Technical Physics Chinese Academy of Sciences,Shanghai 200083,China
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    Figures & Tables(4)
    (a)Crystal structure diagram of tellurene,(b)Schematic diagram of tellurene -based terahertz detector and optical field distribution at the channel
    (a)The transmission characteristic curve of the device,(b)Photocurrent curve at 0.02∼0.04 THz frequency,(c)Photocurrent curve at 0.08∼0.12 THz frequency,(d)The bias voltage dependence of photocurrent,(e)Photocurrent curve with different incident power densities,(f)The power dependence of photocurrent under different bias voltages.
    (a)The photoresponse waveform of the photocurrent under 0.04THz radiation,(b)The change of the photocurrent with the modulation frequency,(c)The response time of the device,(d)The waveform diagram of the device under different bias voltages.
    • Table 1. Performance index comparison of this work with other typical two-dimensional materials for terahertz detectors

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      Table 1. Performance index comparison of this work with other typical two-dimensional materials for terahertz detectors

      探测机制材料频率响应时间噪声等效功率参考文献
      测辐射热效应石墨烯0.15 THz<2.5 ns0.2 fW/Hz0.5[23]
      光电导效应石墨烯0.15 THz20 μs0.5 nW/Hz0.5[24]
      等离子体波整流石墨烯0.15 THz0.6 nW/Hz0.5[25]

      光热电效应

      等离子体波整流

      黑磷~0.3 THz

      <2 ms

      10 ms

      45 nW/Hz0.5

      10 nW/Hz0.5

      [26]

      光热电效应

      (超短沟通)

      黑磷0.04~0.3 THz0.8 μs138 pW/Hz0.58
      PtTe20.04~0.12 THz17 μs<10 pW/Hz0.55
      肖特基二级管InGaAs0.25 THz106.6 pW/Hz0.5[27]
      光热电效应本工作(碲烯)0.04~0.12 THz8 μs4 pW/Hz0.5
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    Wen-Chao HUANG, Kai-Xuan ZHANG, Yun-Xia LI, Lin WANG. Terahertz photodetector based on two-dimensional tellurene[J]. Journal of Infrared and Millimeter Waves, 2022, 41(4): 721

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    Paper Information

    Category: Research Articles

    Received: Nov. 12, 2021

    Accepted: --

    Published Online: Dec. 13, 2022

    The Author Email: Lin WANG (wanglin@mail.sitp.ac.cn)

    DOI:10.11972/j.issn.1001-9014.2022.04.010

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