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A molecular pyroelectric enabling broadband photo-pyroelectric effect towards self-driven wide spectral photodetection

Author

Listed:
  • Xi Zeng

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yi Liu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Wen Weng

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Lina Hua

    (Chinese Academy of Sciences)

  • Liwei Tang

    (Chinese Academy of Sciences)

  • Wuqian Guo

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yaoyao Chen

    (Chinese Academy of Sciences)

  • Tian Yang

    (Chinese Academy of Sciences)

  • Haojie Xu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Junhua Luo

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China)

  • Zhihua Sun

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China)

Abstract

Broadband spectral photoresponse has shown bright prospects for various optoelectronic devices, while fulfilling high photoactivity beyond the material bandgap is a great challenge. Here, we present a molecular pyroelectric, N-isopropylbenzylaminium trifluoroacetate (N-IBATFA), of which the broadband photo-pyroelectric effects allow for self-driven wide spectral photodetection. As a simple organic binary salt, N-IBATFA possesses a large polarization (~9.5 μC cm−2), high pyroelectric coefficient (~6.9 μC cm−2 K−1) and figures-of-merits (FV = 187.9 × 10−2 cm2 μC−1; FD = 881.5 × 10−5 Pa−0.5) comparable to the state-of-art pyroelectric materials. Particularly, such intriguing attributes endow broadband photo-pyroelectric effect, namely, transient currents covering ultraviolet (UV, 266 nm) to near-infrared (NIR, 1950 nm) spectral regime, which breaks the restriction of its optical absorption and thus allows wide UV-NIR spectral photodetection. Our finding highlights the potential of molecular system as high-performance candidates toward self-powered wide spectral photodetection.

Suggested Citation

  • Xi Zeng & Yi Liu & Wen Weng & Lina Hua & Liwei Tang & Wuqian Guo & Yaoyao Chen & Tian Yang & Haojie Xu & Junhua Luo & Zhihua Sun, 2023. "A molecular pyroelectric enabling broadband photo-pyroelectric effect towards self-driven wide spectral photodetection," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41523-z
    DOI: 10.1038/s41467-023-41523-z
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    1. U. Sassi & R. Parret & S. Nanot & M. Bruna & S. Borini & D. De Fazio & Z. Zhao & E. Lidorikis & F.H.L. Koppens & A. C. Ferrari & A. Colli, 2017. "Graphene-based mid-infrared room-temperature pyroelectric bolometers with ultrahigh temperature coefficient of resistance," Nature Communications, Nature, vol. 8(1), pages 1-10, April.
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