A general approach for the synthesis of two-dimensional binary compounds

Abstract

Only a few of the vast range of potential two-dimensional materials have been isolated or synthesised to date. Typically, 2D materials are discovered by mechanically exfoliating naturally occurring bulk crystals to produce atomically thin layers, after which a material-specific vapour synthesis method must be developed to grow interesting candidates in a scalable manner. Here we show a general approach for synthesising thin layers of two-dimensional binary compounds. We apply the method to obtain high quality, epitaxial MoS2 films, and extend the principle to the synthesis of a wide range of other materials - both well-known and never-before isolated - including transition metal sulphides, selenides, tellurides, and nitrides. This approach greatly simplifies the synthesis of currently known materials, and provides a general framework for synthesising both predicted and unexpected new 2D compounds.

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• First Principles Heisenberg Models of 2D magnetic materials: The Importance of Quantum Corrections to the Exchange Coupling
• Design guidelines for two-dimensional transition metal dichalcogenide alloys
• High throughput investigation of an emergent and naturally abundant 2D material: Clinochlore
• Pettifor Maps of Complex Ternary Two-dimensional Transition Metal Sulphides
• Which chromium-sulfur compounds exist as 2D material?
• Investigation of the Nonlinear Optical Frequency Conversion in Ultrathin Franckeite Heterostructures
• Quantum spin Hall effect in two-dimensional metals without spin-orbit coupling