Hydrogenated carbon clusters produced by highly charged ion impact on solid C84
KVI Atomic Physics, Rijksuniversiteit Groningen, Zernikelaan 25, 9747AA Groningen,
2 Lawrence Livermore National Laboratory, Livermore, California 94550, USA
Published online: 15 November 2000
The emission of small (hydrogenated) carbon cluster ions CnH (n=2-22) upon highly charged Xe (q=20-44) impact on C84 surfaces is studied by means of time-of-flight secondary ion mass spectrometry. The respective stage of hydrogenation/protonation of a certain carbon cluster ion C is a strong indication for its geometrical structure. From the cluster ion yield as a function of cluster size it can be concluded, that the hydrogenation takes place after the initial carbon cluster formation. The carbon clusters seem to be emitted as an entity in agreement with "equilibrium" and "shock wave" models.
PACS: 36.40.Jn – Reactivity of clusters / 61.48.+c – Fullerenes and fullerene-related materials / 79.20.Rf – Atomic, molecular, and ion beam impact and interactions with surfaces
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000