Stepwise self-assembly of C₆₀ mediated by atomic scale moiré magnifiers.
Identifieur interne : 000379 ( Main/Exploration ); précédent : 000378; suivant : 000380Stepwise self-assembly of C₆₀ mediated by atomic scale moiré magnifiers.
Auteurs : RBID : pubmed:23575683Abstract
Self-assembly of atoms or molecules on a crystal surface is considered one of the most promising methods to create molecular devices. Here we report a stepwise self-assembly of C₆₀ molecules into islands with unusual shapes and preferred sizes on a gold-indium-covered Si(111) surface. Specifically, 19-mer islands prefer a non-compact boomerang shape, whereas hexagonal 37-mer islands exhibit extraordinarily enhanced stability and abundance. The stepwise self-assembly is mediated by the moiré interference between an island with its underlying lattice, which essentially maps out the adsorption-energy landscape of a C₆₀ on different positions of the surface with a lateral magnification factor and dictates the probability for the subsequent attachment of C₆₀ to an island's periphery. Our discovery suggests a new method for exploiting the moiré interference to dynamically assist the self-assembly of particles and provides an unexplored tactic of engineering atomic scale moiré magnifiers to facilitate the growth of monodispersed mesoscopic structures.
DOI: 10.1038/ncomms2706
PubMed: 23575683
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Here we report a stepwise self-assembly of C₆₀ molecules into islands with unusual shapes and preferred sizes on a gold-indium-covered Si(111) surface. Specifically, 19-mer islands prefer a non-compact boomerang shape, whereas hexagonal 37-mer islands exhibit extraordinarily enhanced stability and abundance. The stepwise self-assembly is mediated by the moiré interference between an island with its underlying lattice, which essentially maps out the adsorption-energy landscape of a C₆₀ on different positions of the surface with a lateral magnification factor and dictates the probability for the subsequent attachment of C₆₀ to an island's periphery. Our discovery suggests a new method for exploiting the moiré interference to dynamically assist the self-assembly of particles and provides an unexplored tactic of engineering atomic scale moiré magnifiers to facilitate the growth of monodispersed mesoscopic structures.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">23575683</PMID><DateCreated><Year>2013</Year><Month>04</Month><Day>11</Day></DateCreated><DateCompleted><Year>2013</Year><Month>10</Month><Day>22</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">2041-1723</ISSN><JournalIssue CitedMedium="Internet"><Volume>4</Volume><PubDate><Year>2013</Year></PubDate></JournalIssue><Title>Nature communications</Title><ISOAbbreviation>Nat Commun</ISOAbbreviation></Journal><ArticleTitle>Stepwise self-assembly of C₆₀ mediated by atomic scale moiré magnifiers.</ArticleTitle><Pagination><MedlinePgn>1679</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1038/ncomms2706</ELocationID><Abstract><AbstractText>Self-assembly of atoms or molecules on a crystal surface is considered one of the most promising methods to create molecular devices. Here we report a stepwise self-assembly of C₆₀ molecules into islands with unusual shapes and preferred sizes on a gold-indium-covered Si(111) surface. Specifically, 19-mer islands prefer a non-compact boomerang shape, whereas hexagonal 37-mer islands exhibit extraordinarily enhanced stability and abundance. The stepwise self-assembly is mediated by the moiré interference between an island with its underlying lattice, which essentially maps out the adsorption-energy landscape of a C₆₀ on different positions of the surface with a lateral magnification factor and dictates the probability for the subsequent attachment of C₆₀ to an island's periphery. Our discovery suggests a new method for exploiting the moiré interference to dynamically assist the self-assembly of particles and provides an unexplored tactic of engineering atomic scale moiré magnifiers to facilitate the growth of monodispersed mesoscopic structures.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Gruznev</LastName><ForeName>D V</ForeName><Initials>DV</Initials><Affiliation>Institute of Automation and Control Processes, Vladivostok 690041, Russia.</Affiliation></Author><Author ValidYN="Y"><LastName>Matetskiy</LastName><ForeName>A V</ForeName><Initials>AV</Initials></Author><Author ValidYN="Y"><LastName>Bondarenko</LastName><ForeName>L V</ForeName><Initials>LV</Initials></Author><Author ValidYN="Y"><LastName>Utas</LastName><ForeName>O A</ForeName><Initials>OA</Initials></Author><Author ValidYN="Y"><LastName>Zotov</LastName><ForeName>A V</ForeName><Initials>AV</Initials></Author><Author ValidYN="Y"><LastName>Saranin</LastName><ForeName>A A</ForeName><Initials>AA</Initials></Author><Author ValidYN="Y"><LastName>Chou</LastName><ForeName>J P</ForeName><Initials>JP</Initials></Author><Author ValidYN="Y"><LastName>Wei</LastName><ForeName>C M</ForeName><Initials>CM</Initials></Author><Author ValidYN="Y"><LastName>Lai</LastName><ForeName>M Y</ForeName><Initials>MY</Initials></Author><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Y L</ForeName><Initials>YL</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Nat Commun</MedlineTA><NlmUniqueID>101528555</NlmUniqueID><ISSNLinking>2041-1723</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2012</Year><Month>9</Month><Day>26</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2013</Year><Month>3</Month><Day>06</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>4</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>4</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>4</Month><Day>12</Day><Hour>6</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pii">ncomms2706</ArticleId><ArticleId IdType="doi">10.1038/ncomms2706</ArticleId><ArticleId IdType="pubmed">23575683</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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