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A black phosphorus photo-detector for multispectral, high-resolution imaging
Michael Engel, Mathias Steiner, Phaedon Avouris
Black phosphorus is a layered semiconductor that is intensely researched in view of applications in optoelectronics. In this Letter, we investigate a multi-layer black phosphorus p…
Substrate Sensitive Mid-Infrared Photoresponse in Graphene
Marcus Freitag, Tony Low, Luis Martin-Moreno +3
We report mid-infrared photocurrent spectra of graphene nanoribbon arrays on SiO2 dielectrics showing dual signatures of the substrate interaction. First, hybrid polaritonic modes…
Origin of photoresponse in black phosphorus photo-transistors
Tony Low, Michael Engel, Mathias Steiner +1
We study the origin of photocurrent generated in doped multilayer BP photo-transistors, and find that it is dominated by thermally driven thermoelectric and bolometric processes. T…
Plasmons and screening in monolayer and multilayer black phosphorus
Tony Low, Rafael Roldán, Han Wang +4
Black phosphorus exhibits a high degree of band anisotropy. However, we found that its in-plane static screening remains relatively isotropic for momenta relevant to elastic long-r…
Graphene Plasmonics for Terahertz to Mid-Infrared Applications
Tony Low, Phaedon Avouris
In recent years, we have seen a rapid progress in the field of graphene plasmonics, motivated by graphene's unique electrical and optical properties, tunabilty, long-lived collecti…
Electronic transport and device prospects of monolayer molybdenum disulphide grown by chemical vapour deposition
Wenjuan Zhu, Tony Low, Yi-Hsien Lee +5
Layered transition metal dichalcogenides display a wide range of attractive physical and chemical properties and are potentially important for various device applications. Here we…