Synthesis and Local Probe Gating of a Monolayer Metal-Organic Framework

Abstract

Achieving large-area uniform two-dimensional (2D) metal-organic frameworks (MOFs) and controlling their electronic properties on inert surfaces is a big step towards future applications in electronic devices. Here we successfully fabricated a 2D monolayer Cu-dicyanoanthracene (DCA) MOF with long-range order on an epitaxial graphene surface. Its structural and electronic properties are studied by low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS) complemented by density-functional theory (DFT) calculations. We demonstrate access to multiple molecular charge states in the 2D MOF using tip-induced local electric fields. We expect that a similar strategy could be applied to fabricate and characterize 2D MOFs with exotic, engineered electronic states.

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• Family of Two Dimensional Transition Metal Dichlorides Fundamental Properties, Structural Defects, and Environmental Stability
• Local gate control of Mott metal-insulator transition in a 2D metal-organic framework
• Correlation-induced magnetism in substrate-supported 2D metal-organic frameworks
• Electronic Characterization of a Charge-Transfer Complex Monolayer on Graphene
• Yu-Shiba-Rusinov bands in a self-assembled kagome lattice of magnetic molecules
• Emergence of Exotic Spin Texture in Supramolecular Metal Complexes on a 2D Superconductor