Author/Authors :
Sing، نويسنده , , M. and Soldatov، نويسنده , , A. and Pichler، نويسنده , , T. and Sundqvist، نويسنده , , B. and Knupfer، نويسنده , , M. and Golden، نويسنده , , M.S. and Fink، نويسنده , , J.، نويسنده ,
Abstract :
We have investigated the electronic structure of one and two-dimensional C60 polymers with regard to both their low-lying excitations and C 1s excitation spectra by means of electron energy-loss spectroscopy in transmission. We compare the results with those for pristine C60. In general, the spectra for the polymers resemble those for pristine C60 but show a broadening due to both the lowering of the symmetry and the increased intermolecular overlap. This is also reflected by a reduction of the optical gap in comparison with pristine C60.