Near-equilibrium growth from borophene edges on silver

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dc.citation.articleNumbereaax0246
dc.citation.issueNumber9
dc.citation.journalTitleScience Advances
dc.citation.volumeNumber5
dc.contributor.authorZhang, Zhuhua
dc.contributor.authorMannix, Andrew J.
dc.contributor.authorLiu, Xiaolong
dc.contributor.authorHu, Zhili
dc.contributor.authorGuisinger, Nathan P.
dc.contributor.authorHersam, Mark C.
dc.contributor.authorYakobson, Boris I.
dc.date.accessioned2019-10-23T14:49:57Z
dc.date.available2019-10-23T14:49:57Z
dc.date.issued2019
dc.description.abstractTwo-dimensional boron, borophene, was realized in recent experiments but still lacks an adequate growth theory for guiding its controlled synthesis. Combining ab initio calculations and experimental characterization, we study edges and growth kinetics of borophene on Ag(111). In equilibrium, the borophene edges are distinctly reconstructed with exceptionally low energies, in contrast to those of other two-dimensional materials. Away from equilibrium, sequential docking of boron feeding species to the reconstructed edges tends to extend the given lattice out of numerous polymorphic structures. Furthermore, each edge can grow via multiple energy pathways of atomic row assembly due to variable boron-boron coordination. These pathways reveal different degrees of anisotropic growth kinetics, shaping borophene into diverse elongated hexagonal islands in agreement with experimental observations in terms of morphology as well as edge orientation and periodicity. These results further suggest that ultrathin borophene ribbons can be grown at low temperature and low boron chemical potential.
dc.identifier.citationZhang, Zhuhua, Mannix, Andrew J., Liu, Xiaolong, et al.. "Near-equilibrium growth from borophene edges on silver." <i>Science Advances,</i> 5, no. 9 (2019) AAAS: https://doi.org/10.1126/sciadv.aax0246.
dc.identifier.doihttps://doi.org/10.1126/sciadv.aax0246
dc.identifier.urihttps://hdl.handle.net/1911/107491
dc.language.isoeng
dc.publisherAAAS
dc.rightsDistributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.titleNear-equilibrium growth from borophene edges on silver
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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