Ultrafast and highly sensitive infrared photodetectors based on two-dimensional oxyselenide crystals
10.1038/s41467-018-05874-2
Crossref journal-article
Springer Science and Business Media LLC
Nature Communications (297)
Abstract

AbstractInfrared light detection and sensing is deeply embedded in modern technology and human society and its development has always been benefitting from the discovery of various photoelectric materials. The rise of two-dimensional materials, thanks to their distinct electronic structures, extreme dimensional confinement and strong light–matter interactions, provides a material platform for next-generation infrared photodetection. Ideal infrared detectors should have fast respond, high sensitivity and air-stability, which are rare to meet at the same time in one two-dimensional material. Herein we demonstrate an infrared photodetector based on two-dimensional Bi2O2Se crystal, whose main characteristics are outstanding in the whole two-dimensional family: high sensitivity of 65 AW−1 at 1200 nm and ultrafast photoresponse of ~1 ps at room temperature, implying an intrinsic material-limited bandwidth up to 500 GHz. Such great performance is attributed to the suitable electronic bandgap and high carrier mobility of two-dimensional oxyselenide.

Bibliography

Yin, J., Tan, Z., Hong, H., Wu, J., Yuan, H., Liu, Y., Chen, C., Tan, C., Yao, F., Li, T., Chen, Y., Liu, Z., Liu, K., & Peng, H. (2018). Ultrafast and highly sensitive infrared photodetectors based on two-dimensional oxyselenide crystals. Nature Communications, 9(1).

Authors 14
  1. Jianbo Yin (first)
  2. Zhenjun Tan (additional)
  3. Hao Hong (additional)
  4. Jinxiong Wu (additional)
  5. Hongtao Yuan (additional)
  6. Yujing Liu (additional)
  7. Cheng Chen (additional)
  8. Congwei Tan (additional)
  9. Fengrui Yao (additional)
  10. Tianran Li (additional)
  11. Yulin Chen (additional)
  12. Zhongfan Liu (additional)
  13. Kaihui Liu (additional)
  14. Hailin Peng (additional)
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Dates
Type When
Created 7 years ago (Aug. 13, 2018, 9:44 a.m.)
Deposited 2 years, 8 months ago (Dec. 20, 2022, 11:48 a.m.)
Indexed 10 hours, 37 minutes ago (Aug. 29, 2025, 6:29 a.m.)
Issued 7 years ago (Aug. 17, 2018)
Published 7 years ago (Aug. 17, 2018)
Published Online 7 years ago (Aug. 17, 2018)
Funders 0

None

@article{Yin_2018, title={Ultrafast and highly sensitive infrared photodetectors based on two-dimensional oxyselenide crystals}, volume={9}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/s41467-018-05874-2}, DOI={10.1038/s41467-018-05874-2}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Yin, Jianbo and Tan, Zhenjun and Hong, Hao and Wu, Jinxiong and Yuan, Hongtao and Liu, Yujing and Chen, Cheng and Tan, Congwei and Yao, Fengrui and Li, Tianran and Chen, Yulin and Liu, Zhongfan and Liu, Kaihui and Peng, Hailin}, year={2018}, month=aug }