|Ph.D Student||Kaplan Andrey|
|Subject||Ion-Surface Impact Phenomena: Disintegration of C60|
Ions and Formation of Endohedral Fullerenes
|Department||Department of Chemistry||Supervisor||Professor Eliezer Kolodney|
In this thesis we have studied two subjects related with the collisions of energetic ions with surfaces. Both concerns collisional behavior of the molecule. was utilized in our experiments both as a collider striking a metallic surface and as a surface supported target for an energetic ion collision. The first subject deals with the collisional fragmentation of the negative ion, impacting a gold surface, at the impact energy range of = 80 - 1000 eV and at several scattering angles. The second one deals with the intramolecular penetration of an atomic ion () into a surface adsorbed molecule (on a gold surface). The steady state coverage is measured by kinetic (growth/etching) experiments to be in the sub-monolayer coverage. The combined penetration and ejection step of the so-formed endohedral fullerene is shown to be a single collision event. A maximum yield around 80 ± 5 eV impact energy was found.