The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.
Broadband Anisotropic Photoresponse of the “Hydrogen Atom” Version Type-II Weyl Semimetal Candidate TaIrTe4
Abstract
The layered ternary compound TaIrTe 4 is an important candidate to host the recently predicted type-II Weyl Fermions that break Lorentz invariance. Photodetectors based on Weyl semimetal promise extreme performance in terms of highly sensitive, broadband, and self-powered operation owing to its topologically protected band structures. In this work, we report the realization of a broadband self-powered photodetector based on TaIrTe 4 . The photocurrent generation mechanisms are investigated with power- and temperature-dependent photoresponse measurements. The prototype metal-TaIrTe 4 -metal photodetector exhibits a responsivity of 20 μA W –1 or a specific detectivity of 1.8 × 10 6 Jones with 27 μs response time at 10.6 μm. Broadband responses from 532 nm to 10.6 μm are experimentally tested with potential detection range extendable to far-infrared and terahertz. Furthermore, anisotropic response of the TaIrTe 4 photodetector is identified using polarization-angle-dependent measurement with linearly polarized light. The anisotropy is found to be wavelength dependent, and the degree of anisotropy increases as the excitation wavelength gets closer to the Weyl nodes. Our results suggest this emerging class of materials can be harnessed for broadband, polarization angle-sensitive, self-powered photodetection with reasonable responsivities.
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Cites
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Graphene photodetectors for high-speed optical communications
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Experimental Discovery of Weyl Semimetal TaAs
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Self-citationWeyl Semimetal Phase in Noncentrosymmetric Transition-Metal Monophosphides
Weng, H., Fang, C., Fang, Z., Bernevig, B. A., & Dai, X. (2015) · Physical Review X · doi:10.1103/physrevx.5.011029 · Cited by 1,889
A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class
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Observation of the Chiral-Anomaly-Induced Negative Magnetoresistance in 3D Weyl Semimetal TaAs
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Self-citationObservation of Weyl nodes in TaAs
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Self-citationWeyl semimetal phase in the non-centrosymmetric compound TaAs
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Self-citationDirect optical detection of Weyl fermion chirality in a topological semimetal
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Photocurrents in Weyl semimetals
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Optical spectroscopy of the Weyl semimetal TaAs
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Cited by
Emerging in‐plane anisotropic two‐dimensional materials
Li, L., Han, W., Pi, L., Niu, P., Han, J., Wang, C., Su, B., Li, H., Xiong, J., Bando, Y., et al. (2019) · InfoMat · doi:10.1002/inf2.12005 · Cited by 382
Metadata
- Authors
- Lai, J., Liu, Y., Ma, J., Zhuo, X., Peng, Y., Lu, W., Liu, Z., Chen, J., & Sun, D.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-04-05
- Volume
- 12
- Issue
- 4
- Pages
- 4055-4061
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2795368917
- Cited by
- 159
- References
- 14
- FWCI
- 5.37
- Type
- journal article
- Language
- en
- Open access
- closed
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