HREELS, IR and SFG investigation of undoped and doped adsorbed fullerenes

Christophe Silien, Yves Caudano, Jean-Louis Longueville, Saidi Bouzidi, Frédéric Wiame, André Peremans, Paul Thiry

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Résumé

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.
langue originaleAnglais
Pages (de - à)79-84
Nombre de pages6
journalSurface Science
Volume427-428
Etat de la publicationPublié - 1999

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