Journal
PHYSICAL REVIEW B
Volume 104, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.104.L241302
Keywords
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Funding
- NSF [2016356, DGE-1762114]
- Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division [DE-SC0018171]
- Dir for Tech, Innovation, & Partnerships
- Translational Impacts [2016356] Funding Source: National Science Foundation
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The study observed coherent coupling between excitons localized in monolayer MoSe2 and WSe2 in monolayer MoSe2/WSe2 heterostructures, as well as spectroscopic measurement of the interlayer exciton binding energy of about 250 meV.
Coherent coupling between excitons is at the heart of many-body interactions and quantum information with transition metal dichalcogenide heterostructures as an emergent platform for the investigation of these interactions. We employ multidimensional coherent spectroscopy on monolayer MoSe2/WSe2 heterostructures and observe coherent coupling between excitons spatially localized in monolayer MoSe2 and WSe2. Through many-body spectroscopy, we further observe the absorption state arising from free interlayer electron-hole pairs. This observation yields a spectroscopic measurement of the interlayer exciton binding energy of about 250 meV.
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