Acta Photonica Sinica, Volume. 53, Issue 3, 0304001(2024)

High-performance Photomultiplication-type Organic Photodetector Based on Double-donor Ternary Bulk Heterojunction

Yao LI*... Fenqiang WANG, Ailing WANG, Jun LAN, Hu LIU, Liangpeng LIU, Pengjie ZHANG, Huizhou WU, Ruixia NIU and Xuying ZHANG |Show fewer author(s)
Author Affiliations
  • School of Electronics and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
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    Figures & Tables(13)
    Schematic diagram of molecular structure, device structure and material energy level of active layer materials
    Absorption spectrum of ternary blend film
    Dark current density-voltage (JD-V) curve of the device
    Photocurrent density-voltage (JL-V) curve of the device under 1 mW/cm2 illumination
    Current density-voltage (J-V) curves of devices with doping mass ratio of P3HT∶PTB7-Th∶IEICO-4F (60∶40∶1, wt/wt/wt) under dark conditions and illumination at a wavelength of 520 nm
    EQE of the device under -15 V bias voltage
    Responsivity and specific detectivity of the device under -15 V bias
    EQE of devices with optimal mass ratio under different bias voltages
    Jph-Pin curves of devices with optimal mass ratio at different bias voltages and 520 nm
    Schematic diagram of the charge transport of the device and three electron traps in the active layer
    Mobility of the device and photoluminescence spectrum of the active layer
    • Table 1. Responsivity and specific detectivity of optimal mass ratio devices at different bias voltages and wavelengths

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      Table 1. Responsivity and specific detectivity of optimal mass ratio devices at different bias voltages and wavelengths

      λ/nmR/(A·W-1D*/Jones
      -5 V-10 V-12 V-15 V-5 V-10 V-12 V-15V
      4505.3278.06170.25965.803.26×10122.00×10133.35×10131.19×1014
      5208.56113.95217.25733.355.24×10122.91×10134.27×10139.06×1013
      65512.55140.17293.14998.687.67×10123.58×10135.76×10131.23×1014
      85011.66114.73217.81641.917.15×10122.93×10134.28×10137.93×1013
      9500.295.7915.4757.811.81×10111.48×10123.04×10127.14×1012
    • Table 2. Comparison of performance parameters between optimal mass ratio devices and current mainstream devices

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      Table 2. Comparison of performance parameters between optimal mass ratio devices and current mainstream devices

      YearDevice structureWavelength/nmEQE at Bias

      R (A∙W-1

      at Bias

      D* (Jones)at BiasRef.
      2018ITO/PEDOT∶PSS/P3HT∶PTB7-Th∶PC71BM (50∶50∶1, wt/wt/wt)/Al850<500% at -50 V<2×1011 at -10 V9
      2018ITO/PFN-OX/P3HT∶PTB7-Th∶PC61BM (40∶60∶1)/Al850<100% at -10 V<1×1011 at -10 V10
      2020ITO/PEDOT∶PSS/PBDB-T∶IEICO-4F (100∶3, wt/wt)/Al850

      400% at

      -20 V

      0.44×1012 at -10 V19
      2021ITO/ZnO/P3HT∶IEICO (100∶1, wt/wt)/Al850<100% at -15 V<1 at -15 V<1×1012 at -15 V20
      2023ITO/PEDOT∶PSS/P3HT∶PTB7-Th∶IEICO-4F(60∶40∶1, wt/wt/wt)/Al850938.22% at -15 V641.91 at -15 V7.93×1013 at -15 VThis work
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    Yao LI, Fenqiang WANG, Ailing WANG, Jun LAN, Hu LIU, Liangpeng LIU, Pengjie ZHANG, Huizhou WU, Ruixia NIU, Xuying ZHANG. High-performance Photomultiplication-type Organic Photodetector Based on Double-donor Ternary Bulk Heterojunction[J]. Acta Photonica Sinica, 2024, 53(3): 0304001

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    Paper Information

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    Received: Aug. 21, 2023

    Accepted: Oct. 18, 2023

    Published Online: May. 16, 2024

    The Author Email: LI Yao (liyao@mail.lzjtu.cn)

    DOI:10.3788/gzxb20245303.0304001

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