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  • Open Access

Disentangling polycationic fullerenes produced from glassy carbon with multireflection time-of-flight mass spectrometry

Paul Fischer* and Lutz Schweikhard

  • Institut für Physik, Universität Greifswald, 17487 Greifswald, Germany

  • *Corresponding author: paul.fischer@uni-greifswald.de

Phys. Rev. Research 4, 043187 – Published 14 December, 2022

DOI: https://doi.org/10.1103/PhysRevResearch.4.043187

Abstract

Carbon-cluster ions are produced by laser irradiation of glassy carbon in high vacuum. In the case of positively charged species, a bimodal cluster distribution including fullerenes with cluster-size-to-charge ratios of up to a few hundred is observed. Resolving isotopologues by use of a multireflection time-of-flight mass spectrometer allows the detection and abundance determination of multiply charged clusters. It is found that mono-, di-, and tricationic fullerenes are produced, have similar size-over-charge-state ranges, and follow log-normal distributions known to be characteristic of an underlying coalescent growth. A statistical simulation is shown to reproduce the results.

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