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Surface enhanced photodissociation of physisorbed molecules.

Abstract:
We have investigated the photon stimulated desorption of ions from physisorbed layers of CO and O2 on graphite using VUV synchrotron radiation in the range of 13 to 35 eV. In both systems we find a significant enhancement in the monolayer regime of the desorption of O- ions via resonant states which correspond to direct molecular photoabsorption. This enhancement, which is accompanied by suppression of positive ion desorption, is attributed to surface electron attachment following molecular photoexcitation.
Publication status:
Published

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Publisher copy:
10.1103/physrevlett.76.1960

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Journal:
Physical review letters
Volume:
76
Issue:
11
Pages:
1960-1963
Publication date:
1996-03-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:7d4aa3a1-20c1-4ede-834b-4a580ab0f5a2
Source identifiers:
31437
Local pid:
pubs:31437
Language:
English

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