Cited by 326Topological Materials and Phenomena2D Materials and ApplicationsGraphene research and applications

Semimetals for high-performance photodetection

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Liu, Jing, Xia, Fengnian, Xiao, Di, García de Abajo, F. Javier, Sun, Dong·2020·Nature Materials

Abstract

Semimetals are being explored for their unique advantages in low-energy high-speed photodetection, although they suffer from serious drawbacks such as an intrinsically high dark current. In this Perspective, we envision the exploitation of topological effects in the photoresponse of these materials as a promising route to circumvent these problems. We overview recent studies on photodetection based on graphene and other semimetals, and further discuss the opportunities created by topological effects, along with the additional challenges that they impose on photodetector designs.

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Crossref · 10.1038/s41563-020-0715-7

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  • Topological semimetals can be used as broadband photodetectors, with intrinsically high dark currents common to topologically trivial, gapless semimetals largely circumvented by exploiting geometric aspects of the nonlinear optical response.

    “This has sparked interest in the use of topological semimetals as broadband photodetectors, where the issue of intrinsically high dark currents common to topologically trivial, gapless semimetals can be largely circumvented by exploiting these geometric aspects of the nonlinear optical response92.”

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Research works printed but not linked: 8

  1. 3 Dhillon, S. S. et al. The 2017 terahertz science and technology roadmap. Journal of Physics D: Applied Physics 50 , 043001 (2017).
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  4. 34 Wei Lu, S. G., Xuefeng Liu, Hong Lu, Caizhen Li, Jiawei Lai, Chuan Zhao, Zhimin Liao, Shuang Jia, Dong Sun. Ultrafast relaxation dynamics of photoexcited Dirac fermions in the threedimensional DIrac semimetal Cd3As2. Physcal Review B 95 , 024303 (2017).
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  6. 110 DaiChi Takane, Z. W., Seigo Souma, Kosuke Nakayama, Takechika Nakamura, Hikaru Oinuma, Yuki Nakata, Hideaki Iwasawa, Cephise Cacho, Timur Kim, Koji Horiba, Hiroshi Kumigashira, Takashi Takahashi, Yoichi Ando, Takafumi Sato. Observation of chiral fermions with a large topological charge and associated Fermi-Arc surface states in CoSi. Physical Review Letters 122 , 076402 (2019).
  7. 113 Guoqing Chang, S.-Y. X., Benjiamin J. Wieder, Daniel S. Sanchez, Shin-Ming Huang, Ilya Belopolski, Tay-ROng Chang, Songtian Zhang, Arun Bansil, Hsin Lin, M. Zahid Hasan. Unconventional chiral fermions and large topological Fermi arcs in RhSi. Physical Review Letters 119 , 206401 (2017).
  8. 117 I. Meric, C. D., A. Young, J. Hone, P. Kim, K. L. Shepard. in 2010 International Electron Devices Meeting (IEEE, San Francisco, CA, 2010).

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Authors
Liu, J., Xia, F., Xiao, D., García de Abajo, F. J., & Sun, D.
Affiliations
  • Tianjin University (CN)
  • Yale University (US)
  • Carnegie Mellon University (US)
  • Peking University (CN)
Corresponding author
Sun, Dong
Venue
Nature Materials
Published
2020-07-06
Volume
19
Issue
8
Pages
830-837
ISSN
  • 1476-1122 (ISSN-L)
  • 1476-4660
OpenAlex
W3019646646
Cited by
326
References
114
Citations by year
2026: 24 · 2025: 60 · 2024: 77 · 2023: 61 · 2022: 56 · 2021: 43 · 2020: 5
FWCI
2.79
Type
journal article
Language
en
Open access
Locations
  • Nature Materials (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
U.S. Department of Energy (DESC0012509)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
  • Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
  • Physical Sciences › Materials Science › Materials Chemistry › Graphene research and applications
Keywords
semimetals, photodetectors, graphene, topological effects, dark current, high-speed photodetection, broadband photodetection, photoresponse, photodetector design

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