Selective formation of C20 cluster ions by field evaporation from carbon nanotubes

Koichi Hata, Mohd Ariff, Kazuyuki Tohji, Yahachi Saito

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Carbon cluster ions generated by field evaporation from single-walled nanotubes and multi-walled nanotubes have been analyzed by mass spectrometry. The observed mass spectra showed that the singly charged C20 clusters, C20+, were selectively generated as magic clusters for both SWNTs and MWNTs. The onset evaporation field of C20+ was estimated to be about 10 V nm-1. The specific number of atoms comprising the magic cluster indicates a dodecahedral structure instead of a linear chain or a ring.

Original languageEnglish
Pages (from-to)343-346
Number of pages4
JournalChemical Physics Letters
Volume308
Issue number3-4
DOIs
Publication statusPublished - 1999 Jul 23

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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