O2 photodesorption from AuO2- and Au2O2-

Koyasu, Kiichirou; Westhäuser, Wilko; Niemietz, Marco; Heinen, Jan; Ganteför, Gerd

O2 photodesorption from AuO2- and Au2O2-

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2009

Autor:innen

Koyasu, Kiichirou

Westhäuser, Wilko

Niemietz, Marco

Heinen, Jan

Ganteför, Gerd

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Applied Physics / A. 2009, 96(3), pp. 679-684. Available under: doi: 10.1007/s00339-009-5264-5

Zusammenfassung

Using time-resolved photoelectron spectroscopy, the decay channels of AuO2− and Au2O2− following photoexcitation with 3.1-eV photons have been studied. For AuO2−, a state with a rather long lifetime of 30 ps has been identified. Its decay path could not be determined but photodesorption can be excluded. For Au2O2−, the spectra indicate O2 desorption after 3.1-eV photoexcitation on a time scale of 1 ps. While comparing these results on Au n O2− with analogous data on Ag n O2− clusters, a discernible pattern emerges: for dissociatively bound O2(AuO2−, Ag3O2−), there are long-living excited states which do not decay by oxygen desorption, while for molecular chemisorption (Au2O2−, Ag2O2−, Ag4O2−, Ag8O2−), the 3.1-eV photoexcitation triggers fast O2 desorption with a high quantum yield.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

KOYASU, Kiichirou, Wilko WESTHÄUSER, Marco NIEMIETZ, Jan HEINEN, Gerd GANTEFÖR, 2009. O2 photodesorption from AuO2- and Au2O2-. In: Applied Physics / A. 2009, 96(3), pp. 679-684. Available under: doi: 10.1007/s00339-009-5264-5

BibTex

@article{Koyasu2009photo-9403,
  year={2009},
  doi={10.1007/s00339-009-5264-5},
  title={O2 photodesorption from AuO2- and Au2O2-},
  number={3},
  volume={96},
  journal={Applied Physics / A},
  pages={679--684},
  author={Koyasu, Kiichirou and Westhäuser, Wilko and Niemietz, Marco and Heinen, Jan and Ganteför, Gerd}
}

RDF

<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/9403">
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:56:13Z</dc:date>
    <dcterms:issued>2009</dcterms:issued>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9403/1/AppPhyA9620093.pdf"/>
    <dcterms:bibliographicCitation>First publ. in: Applied Physics / A 96 (2009), 3, pp. 679-684</dcterms:bibliographicCitation>
    <dcterms:abstract xml:lang="eng">Using time-resolved photoelectron spectroscopy, the decay channels of AuO2− and Au2O2− following photoexcitation with 3.1-eV photons have been studied. For AuO2−, a state with a rather long lifetime of 30 ps has been identified. Its decay path could not be determined but photodesorption  can be excluded. For Au2O2−, the spectra indicate O2 desorption after 3.1-eV photoexcitation on a time scale of 1 ps. While comparing these results on Au  n  O2− with analogous data on Ag  n  O2− clusters, a discernible pattern emerges: for dissociatively bound O2(AuO2−, Ag3O2−), there are long-living excited states which do not decay by oxygen desorption, while for molecular chemisorption (Au2O2−, Ag2O2−, Ag4O2−, Ag8O2−), the 3.1-eV photoexcitation triggers fast O2 desorption with a high quantum yield.</dcterms:abstract>
    <dc:creator>Heinen, Jan</dc:creator>
    <dc:creator>Niemietz, Marco</dc:creator>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:56:13Z</dcterms:available>
    <dc:creator>Koyasu, Kiichirou</dc:creator>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:contributor>Niemietz, Marco</dc:contributor>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9403/1/AppPhyA9620093.pdf"/>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/9403"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:format>application/pdf</dc:format>
    <dc:creator>Ganteför, Gerd</dc:creator>
    <dcterms:title>O2 photodesorption from AuO2- and Au2O2-</dcterms:title>
    <dc:contributor>Westhäuser, Wilko</dc:contributor>
    <dc:contributor>Ganteför, Gerd</dc:contributor>
    <dc:language>eng</dc:language>
    <dc:contributor>Heinen, Jan</dc:contributor>
    <dc:creator>Westhäuser, Wilko</dc:creator>
    <dc:contributor>Koyasu, Kiichirou</dc:contributor>
    <dc:rights>terms-of-use</dc:rights>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja