Strain-tuning of the electronic, optical, and vibrational properties of two-dimensional crystals
The variegated family of two-dimensional (2D) crystals has developed rapidly since the
isolation of its forerunner: Graphene. Their planeconfined nature is typically associated with …
isolation of its forerunner: Graphene. Their planeconfined nature is typically associated with …
Achieving near-perfect light absorption in atomically thin transition metal dichalcogenides through band nesting
Near-perfect light absorbers (NPLAs), with absorbance, A, of at least 99%, have a wide
range of applications ranging from energy and sensing devices to stealth technologies and …
range of applications ranging from energy and sensing devices to stealth technologies and …
Valley Zeeman effect and Landau levels in two-dimensional transition metal dichalcogenides
This paper presents a theoretical description of both the valley Zeeman effect (g-factors) and
Landau levels in two-dimensional H-phase transition metal dichalcogenides (TMDs) using …
Landau levels in two-dimensional H-phase transition metal dichalcogenides (TMDs) using …
Room temperature multi-phonon upconversion photoluminescence in monolayer semiconductor WS2
Photon upconversion is an anti-Stokes process in which an absorption of a photon leads to
a reemission of a photon at an energy higher than the excitation energy. The upconversion …
a reemission of a photon at an energy higher than the excitation energy. The upconversion …
Anomalous conductance quantization of a one-dimensional channel in monolayer WSe2
Among quantum devices based on 2D materials, gate-defined quantum confined 1D
channels are much less explored, especially in the high-mobility regime where many-body …
channels are much less explored, especially in the high-mobility regime where many-body …
Gate-controlled quantum dots in monolayer WSe2
Quantum confinement and manipulation of charge carriers are critical for achieving devices
practical for quantum technologies. The interplay between electron spin and valley, as well …
practical for quantum technologies. The interplay between electron spin and valley, as well …
Exciton resonances for atomically-thin optics
Metasurfaces enable flat optical elements by leveraging optical resonances in metallic or
dielectric nanoparticles to obtain accurate control over the amplitude and phase of the …
dielectric nanoparticles to obtain accurate control over the amplitude and phase of the …
Ab Initio Studies of Exciton Factors: Monolayer Transition Metal Dichalcogenides in Magnetic Fields
T Deilmann, P Krüger, M Rohlfing - Physical review letters, 2020 - APS
The effect of a magnetic field on the optical absorption in semiconductors has been
measured experimentally and modeled theoretically for various systems in previous …
measured experimentally and modeled theoretically for various systems in previous …
Probing Exciton Dispersions of Freestanding Monolayer by Momentum-Resolved Electron Energy-Loss Spectroscopy
Excitons, as bound electron-hole paired quasiparticle, play an essential role in the energy
transport in the optical-electric properties of semiconductors. Their momentum-energy …
transport in the optical-electric properties of semiconductors. Their momentum-energy …
Exciton binding energy and hydrogenic Rydberg series in layered ReS2
Unlike monolayers of transition metal dichalcogenides such as MoS2, which possess high in-
plane symmetry, layered ReS2 exhibits reduced in-plane crystal symmetry with a distorted 1 …
plane symmetry, layered ReS2 exhibits reduced in-plane crystal symmetry with a distorted 1 …