TY - JOUR
T1 - Direct observation of the non-supported metal nanoparticle electron density of states by X-ray photoelectron spectroscopy
AU - Tchaplyguine, Maxim
AU - Peredkov, Sergey
AU - Rosso, Aldana
AU - Schulz, Joachim
AU - Örhwall, Gunnar
AU - Lundwall, M
AU - Rander, T.
AU - Lindblad, A
AU - Bergensen, H
AU - Pokapanich, W
AU - Svensson, S.
AU - Ristinmaa Sörensen, Stacey
AU - Mårtensson, Nils
AU - Björnholm, Olle
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
U2 - 10.1140/epjd/e2007-00252-0
DO - 10.1140/epjd/e2007-00252-0
M3 - Article
SN - 1434-6060
VL - 45
SP - 295
EP - 299
JO - European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics
JF - European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics
IS - 2
ER -