WebAug 19, 2024 · Here we demonstrate the s-series of Rydberg dark exciton states in tungsten diselenide monolayer, which appears in addition to a conventional bright exciton series in photoluminescence spectra ... WebApr 14, 2024 · a Optical image of two CVD-grown WS2/WSe2 heterobilayers with twist angles of 0 and 60° on the same WS2 underlayer. b High-resolution annular dark-field scanning transmission electron microscopy ...
Bright and dark excitons in 1L WSe 2 : a time-dependent density ...
WebThe exceptionally strong Coulomb interaction in semiconducting transition-metal dichalcogenides (TMDs) gives rise to a rich exciton landscape consisting of bright and … WebDec 4, 2024 · The authors find that both bright and dark excitons exist in the monolayer WSe 2. Notably, the bright K-K excitons preferentially convert into dark Q-K excitons through phonon scattering and lead to a density of … ipv women\\u0027s health
Valley phonons and exciton complexes in a monolayer …
WebJul 10, 2016 · Phonon induced line broadening and population of the dark exciton in a deeply trapped localized emitter in monolayer WSe2. Yu-Ming He, S. Höfling, C. Schneider; Physics. ... (WSe2), a representative semiconducting dichalcogenide with a bandgap in the visible spectral range, discover centres that, at low temperatures, give rise to sharp ... WebWe investigate Landau-quantized excitonic absorption and luminescence of monolayer WSe$_2$ under magnetic field. We observe gate-dependent quantum oscillations in the bright exciton and trions (or ... WebOct 25, 2024 · Abstract We observe a set of three replica luminescent peaks at ∼21.4 meV below the dark exciton, and negative and positive dark trions (or exciton polarons) in monolayer WSe2. The replica redshift energy matches the energy of the zone-center E -mode optical phonons. orchestra hotels \u0026 resorts