Affiliation:
1. Institut für Physikalische Chemie II, Universität Karlsruhe, Kaiserstr. 12 76128 Karlsruhe, Germany
Abstract
Delayed electron emission has been observed upon laser desorption for several fullerenes, endohedral metallofullerenes, and large carbon clusters formed by coalescence reactions. Odd-numbered carbon clusters and fullerene derivatives with exohedral functional groups do not show delayed ionization under similar conditions, presumably due to lower dissociation energies. Thus, delayed electron emission is suggested to be a characteristic indicator for strongly bound fullerene structures. Measurements of the rate of delayed electron emission are used together with structural information from other sources to calculate ionization potentials for these species. Selective observation of delayed electron emission from scattered [Formula: see text] after surface impact and neutralization of [Formula: see text] on graphite confirms an earlier report of this process by Whetten et al.6
Publisher
World Scientific Pub Co Pte Lt
Subject
Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics
Cited by
17 articles.
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