Magneto-photoluminescence of exciton Rydberg states in monolayer WSe${}_2$

Abstract

Monolayer WSe${}_2$ hosts a series of exciton Rydberg states denoted by the principal quantum number n = 1, 2, 3, etc. While most research focuses on their absorption properties, their optical emission is also important but much less studied. Here we measure the photoluminescence from the 1s - 5s exciton Rydberg states in ultraclean monolayer WSe${}_2$ encapsulated by boron nitride under magnetic fields from -31 T to 31 T. The exciton Rydberg states exhibit similar Zeeman shifts but distinct diamagnetic shifts from each other. From their luminescence spectra, Zeeman and diamagnetic shifts, we deduce the binding energies, g-factors and radii of the 1s - 4s exciton states. Our results are consistent with theoretical predictions and results from prior magneto-reflection experiments.

23 pages, 6 figures

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Cited by in corpus (36)

• Exciton g-factors of van der Waals heterostructures from first principles calculations
• Multipath optical recombination of intervalley dark excitons and trions in monolayer WSe${}_2$
• Ab-initio studies of exciton $g$ factors: Monolayer transition metal dichalcogenides in magnetic fields
• Ground and Excited Exciton Polarons in Monolayer MoSe2
• Relaxation and darkening of excitonic complexes in electrostatically-doped monolayer semiconductors: Roles of exciton-electron and trion-electron interactions
• Rydberg series of dark excitons and the conduction band spin-orbit splitting in monolayer WSe${}_2$
• Spinorial formulation of the GW-BSE equations and spin properties of excitons in 2D Transition Metal Dichalcogenides
• Landau-quantized excitonic absorption and luminescence in a monolayer valley semiconductor
• Anomalous Non-Hydrogenic Exciton Series in 2D Materials on High-$\kappa$ Dielectric Substrates
• Breakdown of the static dielectric screening approximation of Coulomb interactions in atomically thin semiconductors
• In-Plane Electric Field Induced Orbital Hybridization of Excitonic States In Monolayer WSe2
• Magnetoexcitons in transition-metal dichalcogenides monolayers, bilayers, and van der Waals heterostructures
• Exciton spectrum in atomically thin monolayers: The role of hBN encapsulation
• Variationally optimized orbital approach to trions in two-dimensional materials
• Ultrafast pseudospin quantum beats in multilayer WSe${}_2$ and MoSe${}_2$
• Light-matter coupling and non-equilibrium dynamics of exchange-split trions in monolayer WS2
• Effects of parallel electric and magnetic fields on Rydberg excitons in buckled two-dimensional materials
• Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response
• Effects of dynamical dielectric screening on the excitonic spectrum of monolayer semiconductors
• Insights into hyperbolic phonon polaritons in hBN using Raman scattering from encapsulated transition metal dichalcogenide layers
• Curvature-enhanced localised emission from dark states in wrinkled monolayer WSe2 at room temperature
• Retrieval of material properties of monolayer transition-metal dichalcogenides from magnetoexciton energy spectra
• Thermal effect on magnetoexciton energy spectra in monolayer transition metal dichalcogenides
• Rydberg excitons and polaritons in monolayer transition metal dichalcogenides in a magnetic field
• Searching for Unconventional Superfluid in Excitons of Monolayer Semiconductors
• Magneto-Optical Measurements of the Negatively Charged 2$s$ Exciton in WSe${}_2$
• Landau-level composition of bound exciton states in magnetic field
• Analytical exciton energies in monolayer transition-metal dichalcogenides
• Retrieval of fundamental material parameters of monolayer transition metal dichalcogenides from experimental exciton energies: An analytical approach
• Rydberg series of intralayer K-excitons in WSe${}_2$ multilayers
• Long-living excited states of a 2D diamagnetic exciton
• Excited Rydberg States in TMD Heterostructures
• Moire-Engineered Excitonic Landscape and Phonon-Mediated Recombination in Twisted WSe2 Bilayers
• Two-dimensional bound excitons in real space and Landau quantization space: A comparative study
• High-temperature observation of intralayer, interlayer, and Rydberg excitons in bulk van der Waals alloy single crystals
• Electric field tunable magnetoexcitons in Xenes-hBN-TMDC, Xenes-hBN-BP, and Xenes-hBN-TMTC heterostructures