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Linear heterostructured Ni2Si/Si nanowires with abrupt interfaces synthesised in solution

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Show simple item record Sheehan, Martin Ramasse, Quentin M. Geaney, Hugh Ryan, Kevin M. 2020-01-06T16:10:31Z 2020-01-06T16:10:31Z 2018
dc.identifier.citation Nanoscale, 2018,10, 19182-19187 en_US
dc.description peer-reviewed en_US
dc.description.abstract Herein, we report a novel approach to form axial heterostructure nanowires composed of linearly distinct Ni silicide (Ni2Si) and Si segments via a one-pot solution synthesis method. Initially, Si nanowires are grown using Au seeds deposited on a Ni substrate with the Si delivery in the solution phase using a liquid phenylsilane precursor. Ni silicide then forms axially along the wires through progressive Ni diffusion from the growth substrate, with a distinct transition between the silicide and pure Si segments. The interfacial abruptness and chemical composition of the heterostructure nanowires was analysed through transmission electron microscopy, electron diffraction, energy dispersive X-ray spectroscopy, aberration corrected scanning transmission electron microscopy and atomically resolved electron energy loss spectroscopy. The method represents a versatile approach for the formation of complex axial NW heterostructures and could be extended to other metal silicide or analogous metal germanide systems. en_US
dc.language.iso eng en_US
dc.publisher Royal Society of Chemistry en_US
dc.relation.ispartofseries Nanoscale;10, 19182-19187
dc.subject natural sciences en_US
dc.subject chemistry en_US
dc.title Linear heterostructured Ni2Si/Si nanowires with abrupt interfaces synthesised in solution en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1039/C8NR05388J
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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