Section 4 of the module deals with the processes of adsorption and
growth at surfaces. These are extremely
important areas of surface science, not only from a fundamental scientific point of view but also because they play
a central role in key technologies such as the fabrication of semiconductor devices. The (STM) image shows an ordered
island of C60 molecules adsorbed on a Ag-terminated Si surface. Both the individual C60 molecules and the atomic
structure of the Si surface are visible.