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arXiv · 2007.06899

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

Linghao Yan·Orlando J. Silveira·Benjamin Alldritt·Ondřej Krejčí·Adam S. Foster·Peter Liljeroth
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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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Linghao Yan, Orlando J. Silveira, Benjamin Alldritt, Ondřej Krejčí, Adam S. Foster, Peter Liljeroth. 2020-07-14. Synthesis and Local Probe Gating of a Monolayer Metal-Organic Framework. https://doi.org/10.1002/adfm.202100519

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