Large-Area Aiming Synthesis of WSe2 Monolayers

Abstract

The monolayer transition metal dichalcogenides have recently attracted much attention owing to their potential in valleytronics, flexible and low-power electronics and optoelectronic devices. Recent reports have demonstrated the growth of large-size 2-dimensional MoS2 layers by the sulfurization of molybdenum oxides. However, the growth of transition metal selenide monolayer has still been a challenge. Here we report that the introduction of hydrogen in the reaction chamber helps to activate the selenization of WO3, where large-size WSe2 monolayer flakes or thin films can be successfully grown.

1 page, 3 figures

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Cited by in corpus (67)

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• Charge transport and mobility engineering in two-dimensional transition metal chalcogenide semiconductors
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• Intrinsic Transport Properties of Electrons and Holes in Monolayer Transition Metal Dichalcogenides
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• Direct Measurement of Exciton Valley Coherence in Monolayer WSe${}_2$
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• Mapping of Low-Frequency Raman Modes in CVD-Grown Transition Metal Dichalcogenides: Layer Number, Stacking Orientation and Resonant Effects
• Moiré Potential Impedes Interlayer Exciton Diffusion in van der Waals Heterostructures
• Visualizing Band Offsets and Edge States in Bilayer-Monolayer Transition Metal Dichalcogenides Lateral Heterojunction
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• Mobility of 2D materials from first principles in an accurate and automated framework
• Wafer-Scale and Deterministic Patterned Growth of Monolayer MoS2 via Vapor-Liquid-Solid Method
• Ambipolar Light-Emitting Transistors on Chemical Vapor Deposited Monolayer MoS2
• Radiative enhancement of single quantum emitters in WSe2 monolayers using site-controlled metallic nano-pillars
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• Mixed-Salt Enhanced Chemical Vapor Deposition of Two-Dimensional Transition Metal Dichalcogenides
• The edge delamination of monolayer transition metal dichalcogenides
• Controllable Water Vapor Assisted Chemical Vapor Transport Synthesis of WS2-MoS2 Heterostructure
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• Toward Mass-Production of Transition Metal Dichalcogenide Solar Cells: Scalable Growth of Photovoltaic-Grade Multilayer WSe2 by Tungsten Selenization
• Visualization of defect-induced excitonic properties of the edges and grain boundaries in synthesized monolayer molybdenum disulfide
• Photodetection in p-n junctions formed by electrolyte-gated transistors of two-dimensional crystals
• Phonons in MoSe2/WSe2 van der Waals heterobilayer
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• Liquid-solid surface phase transformation of fluorinated fullerene on monolayer tungsten diselenide
• Pick-up and assembling of chemically sensitive van der Waals heterostructures using dry cryogenic exfoliation
• Simulation of Thin-TFETs Using Transition Metal Dichalcogenides: Effect of Material Parameters, Gate Dielectric on Electrostatic Device Performance
• Understanding Substrate Effects on Two-Dimensional MoS2 Growth: a Kinetic Monte Carlo Approach
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• High Performance Atomically Thin Flat Lenses
• Experimentally Measured Field Effect Mobilities for Few Layer van der Waals Materials
• Enhanced Valley Zeeman Splitting in Fe-Doped Monolayer MoS2
• Directly grown monolayer MoS2 on Au foils as efficient hydrogen evolution catalysts
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• Epitaxy of new layered materials: 2D chalcogenides and challenges of weak van der Waals interactions
• Dipole-containing encapsulation on WSe2/MoS2 nanoflake p-n diode with glass substrate toward an ideal performance
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• Interfacial Polarons Driven by Charge Transfer In WSe2/Cuprate Superconductor Systems
• Momentum Conserved Ultrafast Charge Transfer Dynamics of Interlayer Excitons in vdW Heterostructures