Formation of neutral InmCn clusters under C60 Ion bombardment of indium

Lars Breuer, Andrew Kucher, Matthias Herder, Andreas Wucher, Nicholas Winograd

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10 Scopus citations

Abstract

The formation of neutral gas phase indium carbide clusters under C60+ ion bombardment of solid indium was investigated using laser based postionization prior to mass spectrometric detection. Two different postionization methods were used and shown to provide saturated photoionization efficiency, thereby delivering nearly the same information about the composition of the sputtered material. The resulting size distributions of neutral InmCn clusters are compared with those of the corresponding cationic secondary cluster ions and discussed in terms of calculated cluster properties. Investigating the dependence on C60+ ion fluence, we demonstrate that clusters containing only one carbon atom are formed in single impact events, whereas the formation of more carbon-rich clusters results from carbon accumulation at the bombarded surface.

Original languageEnglish (US)
Pages (from-to)8542-8552
Number of pages11
JournalJournal of Physical Chemistry A
Volume118
Issue number37
DOIs
StatePublished - Sep 18 2014

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

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