Jk. Gimzewski et al., SCANNING-TUNNELING-MICROSCOPY OF ORDERED C-60 AND C-70 LAYERS ON AU(111), CU(111), AG(110), AND AU(110) SURFACES, Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement and phenomena, 12(3), 1994, pp. 1942-1946
We have conducted a study of the growth of C60 and C70 on a variety of
reconstructed and unreconstructed noble metal surfaces using a UHV sc
anning tunneling microscope. For reconstructed Au(110) and Au(111) sur
faces we observe changes in the superstructure of the metal upon (sub)
monolayer adsorption at the fullerene-metal interface. In all the meta
ls studied, formation of a well-ordered hexagonal C60 overlayer is obs
erved after annealing. (110) and (111) substrates show preferred nucle
ation and growth at terrace and steps, respectively. Time-lapsed image
s illustrate mobility of C60 arrays and clusters. The role of tip-C60
interactions is elucidated by sequences of images and the prospects fo
r manipulation is discussed.