Strain-tuning of the electronic, optical, and vibrational properties of two-dimensional crystals

E Blundo, E Cappelluti, M Felici, G Pettinari… - Applied Physics …, 2021 - pubs.aip.org
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 …

Achieving near-perfect light absorption in atomically thin transition metal dichalcogenides through band nesting

S Lee, D Seo, SH Park, N Izquierdo, EH Lee… - Nature …, 2023 - nature.com
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 …

Valley Zeeman effect and Landau levels in two-dimensional transition metal dichalcogenides

F Xuan, SY Quek - Physical Review Research, 2020 - APS
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 …

Room temperature multi-phonon upconversion photoluminescence in monolayer semiconductor WS2

J Jadczak, L Bryja, J Kutrowska-Girzycka… - Nature …, 2019 - nature.com
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 …

Anomalous conductance quantization of a one-dimensional channel in monolayer WSe2

J Boddison-Chouinard, A Bogan, P Barrios… - npj 2D Materials and …, 2023 - nature.com
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 …

Gate-controlled quantum dots in monolayer WSe2

J Boddison-Chouinard, A Bogan, N Fong… - Applied Physics …, 2021 - pubs.aip.org
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 …

Exciton resonances for atomically-thin optics

J Lynch, L Guarneri, D Jariwala… - Journal of Applied …, 2022 - pubs.aip.org
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 …

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 …

Probing Exciton Dispersions of Freestanding Monolayer by Momentum-Resolved Electron Energy-Loss Spectroscopy

J Hong, R Senga, T Pichler, K Suenaga - Physical review letters, 2020 - APS
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 …

Exciton binding energy and hydrogenic Rydberg series in layered ReS2

J Jadczak, J Kutrowska-Girzycka, T Smoleński… - Scientific reports, 2019 - nature.com
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 …