WebRydberg series of dark excitons and the conduction band spin-orbit splitting in monolayer WSe2. 19 August 2024. ... Probing the dark exciton states in single-layer WS 2 by two … WebDark exciton-exciton annihilation in monolayer WSe 2 Daniel Erkensten, Samuel Brem, Koloman Wagner, Roland Gillen, Raül Perea-Causín, Jonas D. Ziegler, Takashi …
Efficient generation of neutral and charged biexcitons in ... - Nature
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 ... 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 … michael comley tarentum pa
Long valley lifetime of dark excitons in single-layer WSe2 Nature ...
WebApr 6, 2024 · In conclusion, we have shown that intervalley electron-electron scattering makes “dark” ground state trions and biexcitons in Tungsten dichalcogenides WS 2 and WSe 2 optically active, with a... WebWe have performed a detailed investigation of the “spin-forbidden” dark excitons in WSe2 monolayers by optical spectroscopy in an out-of-plane magnetic field Bz. ... magnetophotoluminescence experiments reveal a zero-field splitting δ=0.6±0.1meV between two dark exciton states. The low-energy state is strictly dipole forbidden (perfectly ... WebJan 30, 2024 · Several previously identified excitonic states are indicated in the figure, including the neutral bright exciton, bright trions 29,30,31,32,33, the intravalley spin-forbidden dark exciton 17,18,19 ... michael comer facebook