Direct observation of the non-supported metal nanoparticle electron density of states by X-ray photoelectron spectroscopy
Författare
Summary, in English
Synchrotron-based X-ray photoelectron spectroscopy on copper and silver cluster beams created by a magnetron-based gas-aggregation source has allowed mapping the electron density of states (DOS) of free metallic nanoparticles. The cluster DOS profiles obtained in the experiments strongly resemble the infinite solid DOS shapes, but the extracted cluster work-functions are lower than those for the bulk metal. The latter observation is explained by the initial negative charge on most of the clusters, created by the source.
Avdelning/ar
Publiceringsår
2007
Språk
Engelska
Sidor
295-299
Publikation/Tidskrift/Serie
European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics
Volym
45
Issue
2
Dokumenttyp
Artikel i tidskrift
Förlag
EDP Sciences
Ämne
- Atom and Molecular Physics and Optics
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1434-6060