C-60 was deposited on Ni(110), Pt(111) and Ag(111) and annealed at different temperatures. The structural properties of the overlayer were investigated by low-energy electron diffraction, the changes induced by adsorption on its electronic properties were studied by valence band and core-level photoemission spectroscopy and inverse photoemission spectroscopy. On all surfaces C-60 is chemisorbed and a clear signature for charge transfer is found for C-60 on Ni(110) and Ag(111). Decomposition of C-60 takes place on Ni(110) and Pt(111) above 690 K and 560 K respectively. The decomposition is a kinetically limited reaction on both surfaces and on Pt(111) we find a very strongly chemisorbed precursor state for decomposition.
C-60/metal surfaces: adsorption and decomposition
Pedio M;Zema N;
1999
Abstract
C-60 was deposited on Ni(110), Pt(111) and Ag(111) and annealed at different temperatures. The structural properties of the overlayer were investigated by low-energy electron diffraction, the changes induced by adsorption on its electronic properties were studied by valence band and core-level photoemission spectroscopy and inverse photoemission spectroscopy. On all surfaces C-60 is chemisorbed and a clear signature for charge transfer is found for C-60 on Ni(110) and Ag(111). Decomposition of C-60 takes place on Ni(110) and Pt(111) above 690 K and 560 K respectively. The decomposition is a kinetically limited reaction on both surfaces and on Pt(111) we find a very strongly chemisorbed precursor state for decomposition.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
