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Interlayer excitons in bilayer MoS2 with strong oscillator strength up to room temperature
Iann C. Gerber, Emmanuel Courtade, Shivangi Shree +8
Coulomb bound electron-hole pairs, excitons, govern the optical properties of semi-conducting transition metal dichalcogenides like MoS and WSe. We study optical transition…
Exciton states in monolayer MoSe2 and MoTe2 probed by upconversion spectroscopy
B. Han, C. Robert, E. Courtade +10
Transitions metal dichalcogenides (TMDs) are direct semiconductors in the atomic monolayer (ML) limit with fascinating optical and spin-valley properties. The strong optical absorp…
Spectrally narrow exciton luminescence from monolayer MoS2 exfoliated onto epitaxially grown hexagonal BN
E. Courtade, B. Han, S. Nakhaie +8
The strong light-matter interaction in transition Metal dichalcogenides (TMDs) monolayers (MLs) is governed by robust excitons. Important progress has been made to control the diel…
Exciton-phonon coupling in MoSe2 monolayers
S. Shree, M. Semina, C. Robert +10
We study experimentally and theoretically the exciton-phonon interaction in MoSe2 monolayers encapsulated in hexagonal BN, which has an important impact on both optical absorption…
Exciton diffusion in WSe2 monolayers embedded in a van der Waals heterostructure
F. Cadiz, C. Robert, E. Courtade +9
We have combined spatially-resolved steady-state micro-photoluminescence (PL) with time-resolved photoluminescence (TRPL) to investigate the exciton diffusion in a WSe monol…