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Solution-grown BiI/BiI3 van der Waals heterostructures for sensitive X-ray detection

Author

Listed:
  • Renzhong Zhuang

    (Songshan Lake Materials Laboratory
    Longyan University)

  • Songhua Cai

    (The Hong Kong Polytechnic University, Hunghom)

  • Zengxia Mei

    (Songshan Lake Materials Laboratory)

  • Huili Liang

    (Songshan Lake Materials Laboratory)

  • Ningjiu Zhao

    (Songshan Lake Materials Laboratory)

  • Haoran Mu

    (Songshan Lake Materials Laboratory)

  • Wenzhi Yu

    (Songshan Lake Materials Laboratory
    Chinese Academy of Science)

  • Yan Jiang

    (Songshan Lake Materials Laboratory)

  • Jian Yuan

    (Songshan Lake Materials Laboratory)

  • Shuping Lau

    (The Hong Kong Polytechnic University, Hunghom)

  • Shiming Deng

    (HAMAMATSU Photonics (China) Co., LTD.)

  • Mingyue Han

    (Songshan Lake Materials Laboratory)

  • Peng Jin

    (Zhejiang University)

  • Cailin Wang

    (Songshan Lake Materials Laboratory)

  • Guangyu Zhang

    (Songshan Lake Materials Laboratory
    Chinese Academy of Science)

  • Shenghuang Lin

    (Songshan Lake Materials Laboratory)

Abstract

X-ray detectors must be operated at minimal doses to reduce radiation health risks during X-ray security examination or medical inspection, therefore requiring high sensitivity and low detection limits. Although organolead trihalide perovskites have rapidly emerged as promising candidates for X-ray detection due to their low cost and remarkable performance, these materials threaten the safety of the human body and environment due to the presence of lead. Here we present the realization of highly sensitive X-ray detectors based on an environmentally friendly solution-grown thick BiI/BiI3/BiI (BixIy) van der Waals heterostructure. The devices exhibit anisotropic X-ray detection response with a sensitivity up to 4.3 × 104 μC Gy−1 cm−2 and a detection limit as low as 34 nGy s−1. At the same time, our BixIy detectors demonstrate high environmental and hard radiation stabilities. Our work motivates the search for new van der Waals heterostructure classes to realize high-performance X-ray detectors and other optoelectronic devices without employing toxic elements.

Suggested Citation

  • Renzhong Zhuang & Songhua Cai & Zengxia Mei & Huili Liang & Ningjiu Zhao & Haoran Mu & Wenzhi Yu & Yan Jiang & Jian Yuan & Shuping Lau & Shiming Deng & Mingyue Han & Peng Jin & Cailin Wang & Guangyu Z, 2023. "Solution-grown BiI/BiI3 van der Waals heterostructures for sensitive X-ray detection," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-37297-z
    DOI: 10.1038/s41467-023-37297-z
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    References listed on IDEAS

    as
    1. Yunxia Zhang & Yucheng Liu & Zhuo Xu & Haochen Ye & Zhou Yang & Jiaxue You & Ming Liu & Yihui He & Mercouri G. Kanatzidis & Shengzhong (Frank) Liu, 2020. "Publisher Correction: Nucleation-controlled growth of superior lead-free perovskite Cs3Bi2I9 single-crystals for high-performance X-ray detection," Nature Communications, Nature, vol. 11(1), pages 1-2, December.
    2. Yunxia Zhang & Yucheng Liu & Zhuo Xu & Haochen Ye & Zhou Yang & Jiaxue You & Ming Liu & Yihui He & Mercouri G. Kanatzidis & Shengzhong (Frank) Liu, 2020. "Nucleation-controlled growth of superior lead-free perovskite Cs3Bi2I9 single-crystals for high-performance X-ray detection," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
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