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Waveguiding valley excitons in monolayer transition metal dicalcogenides by dielectric interfaces in the substrate
Xu-Chen Yang, Hongyi Yu, Wang Yao
In monolayers of the semiconducting transition metal dichalcogenides, the electron-hole exchange interaction splits the exciton dispersion into a massive transverse branch, and a l…
Chiral excitonics in monolayer semiconductors on patterned dielectric
Xu-Chen Yang, Hongyi Yu, Wang Yao
Monolayer transition metal dichalcogenides feature tightly bound bright excitons at the degenerate valleys, where electron-hole Coulomb exchange interaction strongly couples the va…
Luminescence anomaly of dipolar valley excitons in homobilayer semiconductor moiré superlattices
Hongyi Yu, Wang Yao
In twisted homobilayer transition metal dichalcogenides, intra- and inter-layer valley excitons hybridize with the layer configurations spatially varying in the moiré. The ground s…
Nanoscale trapping of interlayer excitons in a 2D semiconductor heterostructure
Daniel N. Shanks, Fateme Mahdikhanysarvejahany, Christine Muccianti +8
For quantum technologies based on single excitons and spins, the deterministic placement and control of a single exciton is a long-standing goal. MoSe2-WSe2 heterostructures host s…
Intrinsic Donor-Bound Excitons in Ultraclean Monolayer Semiconductors
Pasqual Rivera, Minhao He, Bumho Kim +16
The monolayer transition metal dichalcogenides are an emergent semiconductor platform exhibiting rich excitonic physics with coupled spin-valley degree of freedom and optical addre…