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dc.contributor.authorWang, Wei Li
dc.contributor.authorSantos, Elton J. G.
dc.contributor.authorJiang, Bin
dc.contributor.authorCubuk, Ekin Dogus
dc.contributor.authorOphus, Colin
dc.contributor.authorCenteno, Alba
dc.contributor.authorPesquera, Amaia
dc.contributor.authorZurutuza, Amaia
dc.contributor.authorCiston, Jim
dc.contributor.authorWestervelt, Robert M.
dc.contributor.authorKaxiras, Efthimios
dc.date.accessioned2017-07-11T21:01:39Z
dc.date.issued2014
dc.identifierQuick submit: 2014-09-09T08:00:13-04:00
dc.identifier.citationWang, Wei Li, Elton J. G. Santos, Bin Jiang, Ekin Dogus Cubuk, Colin Ophus, Alba Centeno, Amaia Pesquera, et al. 2014. “Direct Observation of a Long-Lived Single-Atom Catalyst Chiseling Atomic Structures in Graphene.” Nano Letters 14 (2) (February 12): 450–455. doi:10.1021/nl403327u.en_US
dc.identifier.issn1530-6984en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:33373339
dc.description.abstractFabricating stable functional devices at the atomic scale is an ultimate goal of nanotechnology. In biological processes, such high-precision operations are accomplished by enzymes. A counterpart molecular catalyst that binds to a solid-state substrate would be highly desirable. Here, we report the direct observation of single Si adatoms catalyzing the dissociation of carbon atoms from graphene in an aberration-corrected high-resolution transmission electron microscope (HRTEM). The single Si atom provides a catalytic wedge for energetic electrons to chisel off the graphene lattice, atom by atom, while the Si atom itself is not consumed. The products of the chiseling process are atomic-scale features including graphene pores and clean edges. Our experimental observations and first-principles calculations demonstrated the dynamics, stability, and selectivity of such a single-atom chisel, which opens up the possibility of fabricating certain stable molecular devices by precise modification of materials at the atomic scale.en_US
dc.description.sponsorshipPhysicsen_US
dc.language.isoen_USen_US
dc.publisherAmerican Chemical Society (ACS)en_US
dc.relation.isversionofdoi:10.1021/nl403327uen_US
dash.licenseMETA_ONLY
dc.subjectSingle-atom catalysten_US
dc.subjectHRTEMen_US
dc.subjectGrapheneen_US
dc.subjectMolecular devicesen_US
dc.titleDirect Observation of a Long-Lived Single-Atom Catalyst Chiseling Atomic Structures in Grapheneen_US
dc.typeJournal Articleen_US
dc.date.updated2014-09-09T12:00:14Z
dc.description.versionVersion of Recorden_US
dc.rights.holderWei Li Wang et al.
dc.relation.journalNano Lettersen_US
dash.depositing.authorWestervelt, Robert M.
dash.embargo.until10000-01-01
dc.identifier.doi10.1021/nl403327u*
workflow.legacycommentsWestervelt emailed 2016-05-10 AD Westervelt emailed 2017-03-09 MM meta.darken_US
dash.authorsorderedfalse
dash.contributor.affiliatedCubuk, Ekin
dash.contributor.affiliatedWestervelt, Robert
dash.contributor.affiliatedKaxiras, Efthimios


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