Carrier Plasmon Induced Nonlinear Band Gap Renormalization in Two-Dimensional Semiconductors

Abstract

In reduced-dimensional semiconductors, doping-induced carrier plasmons can strongly couple with quasiparticle excitations, leading to a significant band gap renormalization. We develop a new plasmon-pole theory that efficiently and accurately capture this coupling. Using monolayer molybdenum disulfide (MoS2) as a prototype two-dimensional (2D) semiconductor, we reveal an enhanced band gap renormalization around 400 meV and an unusual nonlinear evolution of its band gap with doping. This 2D prediction significantly differs from the linear behaviors that are common to one-dimensional structures. Our developed approach allows for a quantitative understanding of many-body interactions in general doped 2D semiconductors and paves the way for novel band gap engineering techniques.

References in corpus (22)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Atomically thin MoS2: A new direct-gap semiconductor
• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Control of valley polarization in monolayer MoS2 by optical helicity
• Observation of tightly bound trions in monolayer MoS2
• Observation of giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor
• Mobility engineering and metal-insulator transition in monolayer MoS2
• Optical Spectrum of MoS${}_2$: Many-body Effects and Diversity of Exciton States
• Tunable Photoluminescence of Monolayer MoS2 via Chemical Doping
• Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2
• BerkeleyGW: A Massively Parallel Computer Package for the Calculation of the Quasiparticle and Optical Properties of Materials and Nanostructures
• Quasiparticle Self-Consistent GW Theory
• Excitonic Effects and Optical Spectra of Single-Walled Carbon Nanotubes
• Excitonic Effects on the Optical Response of Graphene and Bilayer Graphene
• An exact Coulomb cutoff technique for supercell calculations
• Truncation of Periodic Image Interactions for Confined Systems
• Quasiparticle band-edge energy and band offsets of monolayer of molybdenum and tungsten chalcogenide
• Dynamical response of a one dimensional quantum wire electron system
• Physical origin of satellite in photoemission of doped graphene: An ab-initio GW plus cumulant study
• Tunable bandgaps and excitons in doped semiconducting carbon nanotubes made possible by acoustic plasmons
• Velocity renormalization and anomalous quasiparticle dispersion in extrinsic graphene
• Satellite structures in the spectral functions of semiconductor quantum well two-dimensional electron gases: a GW plus cumulant study

Cited by in corpus (31)

• Quasiparticle Band Gaps, Excitonic Effects, and Anisotropic Optical Properties of Monolayer Distorted 1-T Diamond-chain Structures
• Direct Determination of Band Gap Renormalization in Photo-Excited Monolayer MoS2
• Interlayer coupling and gate-tunable excitons in transition metal dichalcogenide heterostructures
• Giant spin-splitting and gap renormalization driven by trions in single-layer WS${}_2$/h-BN heterostructures
• Renormalization of quasiparticle band gap in doped two-dimensional materials from many-body calculations
• Optically discriminating carrier-induced quasiparticle band gap and exciton energy renormalization in monolayer MoS2
• Substrate screening effects on the quasiparticle band gap and defect charge transition levels in MoS${}_2$
• Band structures of plasmonic polarons
• Theory of electron-plasmon coupling in semiconductors
• Valley Plasmonics in the Dichalcogenides
• Visualizing Orbital Content of Electronic Bands in Anisotropic 2D Semiconducting ReSe${}_2$
• Exciton-Driven Renormalization of Quasiparticle Band Structure in Monolayer MoS2
• Narrow photoluminescence peak of epitaxial MoS${}_2$ on graphene/Ir(111)
• Quasiparticle band-gap renormalization in doped monolayer MoS${}_2$
• Stark Effect of Doped Two-Dimensional Transition Metal Dichalcogenides
• Comprehensive tunneling spectroscopy of quasi-freestanding MoS${}_2$ on graphene on Ir(111)
• Microscopic mechanism of tunable band gap in potassium doped few-layer black phosphorus
• Decomposition and embedding in the stochastic $GW$ self-energy
• Phonon-assisted processes in the ultraviolet transient optical response of graphene
• Quasiparticle and Optical Properties of Carrier-Doped Monolayer MoTe${}_2$ from First Principles
• Effect of fermion indistinguishability on optical absorption of doped two-dimensional semiconductors
• Valley-Filling Instability and Critical Magnetic Field for Interaction-Enhanced Zeeman Response in Doped WSe${}_2$ Monolayers
• Electron-plasmon interaction induced plasmonic-polaron band replication in epitaxial perovskite SrIrO${}_3$ films
• Plasmon-Phonon Hybridization in Doped Semiconductors from First Principles
• Giant gate-tunable renormalization of spin-correlated flat-band states and bandgap in a 2D magnetic insulator
• Ultrafast creation and melting of nonequilibrium excitonic condensates in bulk WSe${}_2$
• Momentum-Resolved Signatures of Carrier Screening Effects on Electron-Phonon Coupling in MoS${}_2$
• k-resolved ultrafast light-induced band renormalization in monolayer WS${}_2$ on graphene
• Excitons in Atomically Thin TMD in Electric and Magnetic Fields
• Moiré excitons in generalized Wigner crystals
• Stabilization of sliding ferroelectricity through exciton condensation