High resolution electron energy loss spectroscopy was used to characterize the vibrational fingerprint of C60 on Ag(111) and hydrogen-passivated Si(111) surfaces and to investigate the interfacial structure of a chemisorbed monolayer of C60 on Ag(111). Complementary results from infrared absorption spectroscopy and sum-frequency generation spectroscopy help to interpret the spectra in the range of the T1u(4) ' Ag(2) peaks. Estimation of the charge transferred to the chemisorbed monolayer upon further doping with potassium is deduced from the frequency shifts of vibrational modes.
|Number of pages||6|
|Publication status||Published - 1999|
Silien, C., Caudano, Y., Longueville, J-L., Bouzidi, S., Wiame, F., Peremans, A., & Thiry, P. (1999). HREELS, IR and SFG investigation of undoped and doped adsorbed fullerenes. Surface Science, 427-428, 79-84. http://dx.doi.org/10.1016/S0039-6028(99)00239-3