Journal
NATURE COMMUNICATIONS
Volume 11, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-020-17951-6
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Funding
- EPSRC [GR/S26965, EP/E040071]
- University of Nottingham
- University of Glasgow
- ScotCHEM
- European Research Council under the European Union's Seventh Framework Programme (FP7)/ERC [307755-FIN]
- Royal Society Wolfson Fellowship [EP/P020232/1]
- New Directions for EPSRC Research Leaders Award [EP/G005060]
- EPSRC as part of the HPC Midlands+ consortium [EP/P020232/1]
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As the only stable binary compound formed between an alkali metal and nitrogen, lithium nitride possesses remarkable properties and is a model material for energy applications involving the transport of lithium ions. Following a materials design principle drawn from broad structural analogies to hexagonal graphene and boron nitride, we demonstrate that such low dimensional structures can also be formed from an s-block element and nitrogen. Both one- and two-dimensional nanostructures of lithium nitride, Li3N, can be grown despite the absence of an equivalent van der Waals gap. Lithium-ion diffusion is enhanced compared to the bulk compound, yielding materials with exceptional ionic mobility. Li3N demonstrates the conceptual assembly of ionic inorganic nanostructures from monolayers without the requirement of a van der Waals gap. Computational studies reveal an electronic structure mediated by the number of Li-N layers, with a transition from a bulk narrow-bandgap semiconductor to a metal at the nanoscale.
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