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Competing photodissociation pathways for physisorbed O-2/graphite investigated using Ar spacer layers

Abstract:

We have studied photon stimulated ion desorption from O2 physisorbed on graphite, using synchrotron radiation in the energy range 16-40 eV. Ar spacer layers were employed in order to distinguish between direct and indirect (photoelectron driven) dissociation channels, specifically, (i) direct dipolar dissociation, (ii) direct dissociative ionization, (iii) photoelectron driven dissociative attachment and (iv) photoelectron driven dipolar dissociation. We find that the O- yield is mainly due t...

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Publication status:
Published

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Authors


Friedrich, CM More by this author
Palmer, RE More by this author
Bennett, SL More by this author
MacDonald, MA More by this author
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Journal:
CHEMICAL PHYSICS LETTERS
Volume:
247
Issue:
4-6
Pages:
348-354
Publication date:
1995-12-29
DOI:
ISSN:
0009-2614
URN:
uuid:95adfba0-0933-4e83-ae5c-2ffcb678075e
Source identifiers:
44996
Local pid:
pubs:44996
Language:
English

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