Van der Waals two-color infrared photodetector

Peisong Wu; Lei Ye; Lei Tong; Peng Wang; Yang Wang; Hailu Wang; Haonan Ge; Zhen Wang; Yue Gu; Kun Zhang; Yiye Yu; Meng Peng; Fang Wang; Min Huang; Peng Zhou; Weida Hu

doi:10.1038/s41377-021-00694-4

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Van der Waals two-color infrared photodetector

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- Van der Waals two-color infrared photodetector
- Van der Waals two-color infrared photodetector
- LSA 2022年11卷第2期页码：179-187
- Affiliations：
  
  1.State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
  2.University of Chinese Academy of Sciences, Beijing, 100049, China
  3.Hubei Yangtze Memory Labs, School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430205, China
  4.State Key Laboratory of ASIC and Systems, School of Microelectronics, Fudan University, Shanghai, 200433, China
- Author bio：
  
  Peng Wang (w_peng@mail.sitp.ac.cn)
  Peng Zhou (pengzhou@fudan.edu.cn)
  Weida Hu (wdhu@mail.sitp.ac.cn)
- Funds：
- DOI：10.1038/s41377-021-00694-4
  中图分类号：
- 纸质出版日期：2022-02-28，
  
  网络出版日期：2022-01-02，
  
  收稿日期：2021-09-02，
  
  修回日期：2021-11-25，
  
  录用日期：2021-12-02
- Accepted：
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Van der Waals two-color infrared photodetector[J]. LSA, 2022,11(2):179-187.

Wu, P. S. et al. Van der Waals two-color infrared photodetector. Light: Science & Applications, 11, 179-187 (2022).
Van der Waals two-color infrared photodetector[J]. LSA, 2022,11(2):179-187. DOI： 10.1038/s41377-021-00694-4.

Wu, P. S. et al. Van der Waals two-color infrared photodetector. Light: Science & Applications, 11, 179-187 (2022). DOI： 10.1038/s41377-021-00694-4.

摘要

Abstract

With the increasing demand for multispectral information acquisition

infrared multispectral imaging technology that is inexpensive and can be miniaturized and integrated into other devices has received extensive attention. However

the widespread usage of such photodetectors is still limited by the high cost of epitaxial semiconductors and complex cryogenic cooling systems. Here

we demonstrate a noncooled two-color infrared photodetector that can provide temporal-spatial coexisting spectral blackbody detection at both near-infrared and mid-infrared wavelengths. This photodetector consists of vertically stacked back-to-back diode structures. The two-color signals can be effectively separated to achieve ultralow crosstalk of ~0.05% by controlling the built-in electric field depending on the intermediate layer

which acts as an electron-collecting layer and hole-blocking barrier. The impressive performance of the two-color photodetector is verified by the specific detectivity (

*) of 6.4 × 10

cm Hz

1/2

−1

at 3.5 μm and room temperature

as well as the promising NIR/MWIR two-color infrared imaging and absolute temperature detection.

关键词

Keywords

references

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