Au nanowire junction breakup through surface atom diffusion

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dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Department of Physics en
dc.contributor.author Vigonski, Simon
dc.contributor.author Jansson, Ville
dc.contributor.author Vlassov, Sergei
dc.contributor.author Polyakov, Boris
dc.contributor.author Baibuz, Ekaterina
dc.contributor.author Oras, Sven
dc.contributor.author Aabloo, Alvo
dc.contributor.author Djurabekova, Flyura
dc.contributor.author Zadin, Vahur
dc.date.accessioned 2019-01-23T22:39:36Z
dc.date.available 2021-10-13T02:45:46Z
dc.date.issued 2018-01-05
dc.identifier.citation Vigonski , S , Jansson , V , Vlassov , S , Polyakov , B , Baibuz , E , Oras , S , Aabloo , A , Djurabekova , F & Zadin , V 2018 , ' Au nanowire junction breakup through surface atom diffusion ' , Nanotechnology , vol. 29 , no. 1 , 015704 . https://doi.org/10.1088/1361-6528/aa9a1b en
dc.identifier.issn 0957-4484
dc.identifier.other PURE: 95448048
dc.identifier.other PURE UUID: be06c052-d398-4470-8acb-3bdd6d4770d9
dc.identifier.other WOS: 000417531400004
dc.identifier.other Scopus: 85037719507
dc.identifier.other ORCID: /0000-0002-5828-200X/work/40379251
dc.identifier.other ORCID: /0000-0001-6560-9982/work/40379539
dc.identifier.other ORCID: /0000-0002-9099-1455/work/40599718
dc.identifier.uri http://hdl.handle.net/10138/298156
dc.description.abstract Metallic nanowires are known to break into shorter fragments due to the Rayleigh instability mechanism. This process is strongly accelerated at elevated temperatures and can completely hinder the functioning of nanowire-based devices like e.g. transparent conductive and flexible coatings. At the same time, arranged gold nanodots have important applications in electrochemical sensors. In this paper we perform a series of annealing experiments of gold and silver nanowires and nanowire junctions at fixed temperatures 473, 673, 873 and 973 K (200 degrees C, 400 degrees C, 600 degrees C and 700 degrees C) during a time period of 10 min. We show that nanowires are especially prone to fragmentation around junctions and crossing points even at comparatively low temperatures. The fragmentation process is highly temperature dependent and the junction region breaks up at a lower temperature than a single nanowire. We develop a gold parametrization for kinetic Monte Carlo simulations and demonstrate the surface diffusion origin of the nanowire junction fragmentation. We show that nanowire fragmentation starts at the junctions with high reliability and propose that aligning nanowires in a regular grid could be used as a technique for fabricating arrays of nanodots. en
dc.format.extent 10
dc.language.iso eng
dc.relation.ispartof Nanotechnology
dc.rights en
dc.subject 114 Physical sciences en
dc.title Au nanowire junction breakup through surface atom diffusion en
dc.type Article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.1088/1361-6528/aa9a1b
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/acceptedVersion
dc.contributor.pbl
dc.contributor.pbl

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