Phonon and Raman scattering of two-dimensional transition metal dichalcogenides from monolayer, multilayer to bulk material

Abstract

Two-dimensional (2D) transition metal dichalcogenide (TMD) nanosheets exhibit remarkable electronic and optical properties. The 2D features, sizable bandgaps, and recent advances in the synthesis, characterization, and device fabrication of the representative MoS${}_2$, WS${}_2$, WSe${}_2$, and MoSe${}_2$ TMDs make TMDs very attractive in nanoelectronics and optoelectronics. Similar to graphite and graphene, the atoms within each layer in 2D TMDs are joined together by covalent bonds, while van der Waals interactions keep the layers together. This makes the physical and chemical properties of 2D TMDs layer dependent. In this review, we discuss the basic lattice vibrations of monolayer, multilayer, and bulk TMDs, including high-frequency optical phonons, interlayer shear and layer breathing phonons, the Raman selection rule, layer-number evolution of phonons, multiple phonon replica, and phonons at the edge of the Brillouin zone. The extensive capabilities of Raman spectroscopy in investigating the properties of TMDs are discussed, such as interlayer coupling, spin--orbit splitting, and external perturbations. The interlayer vibrational modes are used in rapid and substrate-free characterization of the layer number of multilayer TMDs and in probing interface coupling in TMD heterostructures. The success of Raman spectroscopy in investigating TMD nanosheets paves the way for experiments on other 2D crystals and related van der Waals heterostructures.

arXiv comment30 pages, 23 figures

References in corpus (74)

• Atomically thin MoS2: A new direct-gap semiconductor
• The Raman Fingerprint of Graphene
• Two Dimensional Atomic Crystals
• Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils
• Van der Waals heterostructures
• Raman spectroscopy as a versatile tool for studying the properties of graphene
• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Anomalous Lattice Vibrations of Single and Few-Layer MoS2
• Control of valley polarization in monolayer MoS2 by optical helicity
• Valley polarization in MoS2 monolayers by optical pumping
• Synthesis of Large-Area MoS2 Atomic Layers with Chemical Vapor Deposition
• Enhanced Catalytic Activity in Strained Chemically Exfoliated WS2 Nanosheets for Hydrogen Evolution
• MoS_2 as an ideal material for valleytronics: valley-selective circular dichroism and valley Hall effect
• Bandgap Engineering of Strained Monolayer and Bilayer MoS2
• Ultrafast Charge Transfer in Atomically Thin MoS2/WS2 Heterostructures
• Evolution of Electronic Structure in Atomically Thin Sheets of WS2 and WSe2
• Unconventional quantum Hall effect and Berry's phase of 2pi in bilayer graphene
• Growth of Large-Area and Highly Crystalline MoS2 Thin Layers on Insulating Substrates
• The Valley Hall Effect in MoS2 Transistors
• Vapor Phase Growth and Grain Boundary Structure of Molybdenum Disulfide Atomic Layers
• Making graphene visible
• Electrically Tunable Excitonic Light Emitting Diodes based on Monolayer WSe2 p-n Junctions
• Optical Spectrum of MoS${}_2$: Many-body Effects and Diversity of Exciton States
• Electrical Control of Two-Dimensional Neutral and Charged Excitons in a Monolayer Semiconductor
• Phonons in single and few-layer MoS2 and WS2
• Born-Oppenheimer Breakdown in Graphene
• Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2
• Observation of Van Hove singularities in twisted graphene layers
• Emergence of Superlattice Dirac Points in Graphene on Hexagonal Boron Nitride
• Electric Field Effect Tuning of Electron-Phonon Coupling in Graphene
• Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides
• Symmetry-dependent phonon renormalization in monolayer MoS2 transistor
• Negative Thermal Expansion Coefficient of Graphene Measured by Raman Spectroscopy
• Probing Excitonic Dark States in Single-layer Tungsten Disulfide
• Excitonic Effects and Optical Spectra of Single-Walled Carbon Nanotubes
• Lattice dynamics in mono- and few-layer sheets of WS2 and WSe2
• Low-temperature photocarrier dynamics in monolayer MoS2
• Evolution of Interlayer Coupling in Twisted MoS2 Bilayers
• The Shear Mode of Multi-Layer Graphene
• Localization of Dirac electrons by Moire patterns in graphene bilayers
• Temperature Dependent Raman Studies and Thermal Conductivity of Few Layer MoS2
• Interlayer breathing and shear modes in few-trilayer MoS2 and WSe2
• Large and tunable photo-thermoelectric effect in single-layer MoS2
• Anomalies in thickness measurements of graphene and few layer graphite crystals by tapping mode atomic force microscopy
• Raman spectroscopy study of rotated double-layer graphene: Misorientation-angle dependence of electronic structure
• Anomalous Raman Spectra and Thickness Dependent Electronic properties of WSe2
• Origin of indirect optical transitions in few-layer MoS2, WS2 and WSe2
• Shear and Layer Breathing Modes in Multilayer MoS2
• Lattice Vibrational Modes and Phonon Thermal Conductivity of Monolayer MoS2
• Optical Absorption in Twisted Bilayer Graphene
• Electronic properties of the MoS2-WS2 heterojunction
• Strain tuning of optical emission energy and polarization in monolayer and bilayer MoS2
• Robust optical emission polarization in MoS2 monolayers through selective valley excitation
• Visibility of dichalcogenide nanolayers
• Few-layer Nanoplates of Bi2Se3 and Bi2Te3 with Highly Tunable Chemical Potential
• Rapid and reliable thickness identification of two-dimensional nanosheets using optical microscopy
• Quantitative Raman Spectrum and Reliable Thickness Identification for Atomic Layers on Insulating Substrates
• Photoluminescence of freestanding single- and few-layer MoS2
• The Interlayer Shear Modes in Twisted Multi-layer Graphenes: Interlayer coupling, Davydov Splitting and Intensity Resonance
• Phonon Softening and Direct to Indirect Bandgap Crossover in Strained Single Layer MoSe2
• Temperature-dependent Phonon Shifts in Monolayer MoS2
• Optical manipulation of the exciton charge state in single layer tungsten disulfide
• Raman spectroscopy of the interlayer shear mode in few-layer MoS2 flakes
• Electromechanics in MoS2 and WS2: nanotubes vs. monolayers
• Low-Frequency Raman Modes and Electronic Excitations In Atomically Thin MoS2 Crystals
• Structure change, layer sliding, and metallization in high-pressure MoS${}_2$
• Anomalous Frequency Trends in MoS2 Thin Films Attributed to Surface Effects
• High pressure effect on structure, electronic structure and thermoelectric properties of MoS${}_2$
• A direct comparison of CVD-grown and exfoliated MoS2 using optical spectroscopy
• Anharmonic phonons in few layer MoS${}_2$: Raman spectroscopy of ultra low energy compression and shear modes
• Resonant Low Frequency Interlayer Shear Modes in Folded Graphene Layers
• Temperature-dependent nonlinear phonon shifts in a supported MoS2 monolayer
• Folded MoS2 layers with reduced interlayer coupling
• The ultra-low-frequency shear modes of 2-4 layer graphenes observed in their scroll structures at edges

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