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Photocarrier Generation in Fullerene Films

Published online by Cambridge University Press:  22 February 2011

R. KÖnenkamp ,
J. Erxmeyer  and
A. Weidinger
R. KÖnenkamp
Affiliation:
Hahn-Meitner Institut Berlin, Glienicker Str. 100, 10829 Berlin, Germany
J. Erxmeyer
Affiliation:
Hahn-Meitner Institut Berlin, Glienicker Str. 100, 10829 Berlin, Germany
A. Weidinger
Affiliation:
Hahn-Meitner Institut Berlin, Glienicker Str. 100, 10829 Berlin, Germany
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Abstract

We present results from a detailed study of photoconductivity in thin C60 films. It is shown that the generation of mobile charge carriers involves molecular electronic transitions coupled to molecular vibrations. The vibrational bands broaden with temperature and shift at the fcc-to-scphase transition. For excitations with energy below ∼1.8 eV photoconduction appears to involve a tail of defect states whose distribution is somewhat dependent on sample preparation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 349: Symposium T – Novel Forms of Carbon II , 1994 , 357
Copyright
Copyright © Materials Research Society 1994

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References

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