Thermal desorption spectroscopy has been carried out on thin fullerene films containing endohedral Li@C60 and produced by low-energy ion bombardment. The desorption properties of the films were studied as a function of the film thickness, ion energy, and ion dose. The results provide strong corroborative evidence for the endohedral nature of the Li-containing species and also clearly indicate the prescence of Li2@C60 in the films. The binding energy in these films is significantly larger than in pure C60 films and evidence of degradation of the fullerenes is seen at high ion energies and/or large ion doses.
|Number of pages||6|
|Journal||Applied Physics A: Materials Science and Processing|
|State||Published - 1998|