2007/10/11 by M. Grobis, Grobis, M., Ryan Yamachika +7
Chemistry · Engineering · Materials Science · #FOS: Physical sciences #Fullerene Chemistry and Applications #Graphene research and applications #Materials Science (cond-mat.mtrl-sci) #Molecular Junctions and Nanostructures
paper · pdf · doi:10.48550/arxiv.0710.2153
openalex publication_date 2007/10/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We have performed a scanning tunneling microscopy and spectroscopy study of potassium-doped C60 monolayers (KxC60) on Ag(001) in the regime of x ~ 1. Low temperature annealing (640 K) leads to the formation of two well-ordered KxC60 phases that exhibit differing levels of electron charge transfer. Further annealing (710 K) distills out the higher electron-doped phase from the lower electron-doped phase, leaving behind a third C60 phase completely devoid of K. Spectroscopic measurements indicate that the electron-doping level of the higher electron-doped KC60 phase is anomalously large.