Electronic properties of gold thin films studied by electron energy loss spectroscopy

The influence of electron confinement, quantum size effects, and film morphology on the dispersion and the damping of plasmonic modes in Ag and Au thin films

“…The same considerations are valid for gold, even if its collective excitations have been studied with minor details with respect to silver. However, recent pioneering works on Au SP dispersion [100,188,197,198] (reported in Section 4 of the present review work) show a similar behavior.…”

“…Besides the Au SP, also a broad feature at about 6 eV (bottom panel of Fig. 44), ascribed to the s-like SP of Au, has been revealed by HREELS [197]. Note that for gold e 1 = À1 also for energies around 5-6 eV [169] (Fig.…”

“…As already stated in the Introduction, the investigation of the electronic response of gold systems [100,188,197,198] is a mandatory step in order to reach higher control of its catalytical properties [131,135,137,138,[351][352][353][354][355][356][357].…”

Interplay of structural and temperature effects on plasmonic excitations at noble-metal interfaces

“…Thus, several studies on collective electronic excitations (plasmons) have been reported by both experimentalists [4][5][6][7][8][9] and theoreticians [10,11]. This interest can be accounted for by both the lack of information with respect to surfaces of single crystals and by the broad potential application of nanoscopic structures in nanoelectronics.…”

O2 dissociation in Na-modified gold ultrathin layer on Cu(111)

“…Room temperature deposition of Au onto Cu(111) gave a film with twinned fcc structure, a reasonable degree of crystallinity and clear indications of inter-diffusion at the interface [100]. Moreover, at room temperature, no AuCu alloy was formed [9,12,100,101].…”