Semimetals for high performance photodetection

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 exciting opportunities created by the topological effects, along with the additional requirements that they impose on photodetector designs.

Perspective on photodetection based on topological semimetals

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Cited by in corpus (18)

• Low-frequency divergence and quantum geometry of the bulk photovoltaic effect in topological semimetals
• Topology and geometry under the nonlinear electromagnetic spotlight
• Chiral photocurrent in parity-violating magnet and enhanced response in topological antiferromagnet
• Photocurrent as a multi-physics diagnostic of quantum materials
• Geometric Filterless Photodetectors for Mid-infrared Spin Light
• Nonreciprocal optical response in parity-breaking superconductors
• Photovoltaic effect by soft phonon excitation
• Nonlinear optical responses in noncentrosymmetric superconductors
• Abnormal Surface Nonlinear Optical Responses in Topological Materials
• Surface photogalvanic effect in Weyl semimetals
• Tracking ultrafast change of multiterahertz broadband response functions in a photoexcited Dirac semimetal Cd${}_3$As${}_2$ thin film
• Bulk-Fermi-Arc Transition Induced Large Photogalvanic Effect in Weyl Semimetals
• Strong nonlinear optical response and transient symmetry switching in Type-II Weyl semimetal $\beta$-WP2
• Interface enhanced helicity dependent photocurrent in metal/semimetal bilayers
• Low-Frequency Divergence of Circular Photomagnetic Effect in Topological Semimetals
• Quadrupolar photovoltaic effect in the terahertz range in a two-dimensional spin-3/2 hole system
• Direct Measurement of Helicoid Surface States in RhSi using Nonlinear Optics
• Van Roosbroeck's equations with topological terms: the case of Weyl semimetals