Photodissociation dynamics of gas-phase C60 probed by optical emission spectroscopy

Phys. Rev. B 53, 12541 – Published 15 May 1996
P. Heszler, J. O. Carlsson, and P. Demirev

Abstract

Fragmentation of gas-phase C60 after 193 nm laser excitation at 300 mJ/cm2 fluence is probed by optical emission spectroscopy. Atomic C emission at 247.85 nm, and Mulliken, Deslandres-D’Azambuja, and Swan bands from C2 species are observed. Time-resolved experiments reveal prompt C and C2 fragmentation on a ns time scale or less, and delayed C2 release on a μs scale. The latter is a pathway for energy relaxation in C60, whereby delayed electronically excited C2 fragments are subsequently deexcited by photon emission. © 1996 The American Physical Society.

DOI: http://dx.doi.org/10.1103/PhysRevB.53.12541

  • Received 5 December 1995
  • Published in the issue dated 15 May 1996

© 1996 The American Physical Society

Authors & Affiliations

P. Heszler and J. O. Carlsson

  • Ångström Consortium, Department of Chemistry, Uppsala University, Box 531, S-751 21 Uppsala, Sweden

P. Demirev

  • Division of Ion Physics, Department of Radiation Sciences, Uppsala University, Box 535, S-751 21 Uppsala, Sweden

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