Author/Authors :
Pardini، نويسنده , , T. and Cepek، نويسنده , , C. and Larciprete، نويسنده , , R. and Sangaletti، نويسنده , , L. and Pagliara، نويسنده , , S. and Gotter، نويسنده , , R. and Floreano، نويسنده , , L. and Verdini، نويسنده , , A. and Morgante، نويسنده , , A. and Parmigiani، نويسنده , , F. and Goldoni، نويسنده , , A.، نويسنده ,
Abstract :
The electronic properties of a C70 single layer chemisorbed on Cu(1 1 1) surface, in which the charge state has been modified by Na doping, were studied via synchrotron radiation photoemission and absorption spectroscopy. A two-dimensional metallic phase is observed in the whole range of charge states investigated (from 1 up to 3 electrons/C70). Moreover, all the results suggest that the orientation of the molecules, with the C5v axis perpendicular to the surface, is not affected by Na doping.
Keywords :
Fullerenes , alkali metals , Photon absorption spectroscopy , Photoemission (total yield)
