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Generalized energy band alignment model for van der Waals heterostructures with a charge spillage dipole
Seungjun Lee, Eng Hock Lee, Young-Kyun Kwon +5
The energy band alignment at the interface of van der Waals heterostructures (vdWHs) is a key design parameter for next-generation electronic and optoelectronic devices. Although t…
Power dissipation and electrical breakdown in black phosphorus
Michael Engel, Mathias Steiner, Shu-Jen Han +1
We report operating temperatures and heating coefficients measured in a multi-layer black phosphorus device as a function of injected electrical power. By combining micro-Raman spe…
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…
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…