Optically discriminating carrier-induced quasiparticle band gap and exciton energy renormalization in monolayer MoS2

Abstract

Optoelectronic excitations in monolayer MoS2 manifest from a hierarchy of electrically tunable, Coulombic free-carrier and excitonic many-body phenomena. Investigating the fundamental interactions underpinning these phenomena - critical to both many-body physics exploration and device applications - presents challenges, however, due to a complex balance of competing optoelectronic effects and interdependent properties. Here, optical detection of bound- and free-carrier photoexcitations is used to directly quantify carrier-induced changes of the quasiparticle band gap and exciton binding energies. The results explicitly disentangle the competing effects and highlight longstanding theoretical predictions of large carrier-induced band gap and exciton renormalization in 2D semiconductors.

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• Optically discriminating carrier-induced quasiparticle band gap and exciton energy renormalization in monolayer MoS2

Cited by in corpus (15)

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• Direct Determination of Band Gap Renormalization in Photo-Excited Monolayer MoS2
• Optically discriminating carrier-induced quasiparticle band gap and exciton energy renormalization in monolayer MoS2
• Dielectric dependent hybrid functionals for heterogeneous materials
• Gate tunable optical absorption and band structure of twisted bilayer graphene
• Visualizing Orbital Content of Electronic Bands in Anisotropic 2D Semiconducting ReSe${}_2$
• Many-body theory of optical absorption in doped two-dimensional semiconductors
• Quasiparticle band-gap renormalization in doped monolayer MoS${}_2$
• Ultra Localized Optoelectronic Properties of Nanobubbles in 2D Semiconductors
• Phonon-assisted processes in the ultraviolet transient optical response of graphene
• Direct Nano-Imaging of Light-Matter Interactions in Nanoscale Excitonic Emitters
• Theory of coherent phonons coupled to excitons
• Many-body exchange-correlation effects in MoS${}_2$ monolayer: The key role of nonlocal dielectric screening
• Retrieval of fundamental material parameters of monolayer transition metal dichalcogenides from experimental exciton energies: An analytical approach
• Exciton self-trapping causes picoseconds recombination in metal-organic chalcogenides hybrid quantum wells