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Photoassisted oxygen doping of C60 films

Published online by Cambridge University Press:  03 March 2011

A.M. Rao ,
K-A. Wang ,
J.M. Holden ,
Y. Wang ,
P. Zhou ,
P.C. Eklund ,
C.C. Eloi  and
J.D. Robertson
A.M. Rao
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, and Center for Applied Energy Research, University of Kentucky, Lexington, Kentucky 40511
K-A. Wang
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, and Center for Applied Energy Research, University of Kentucky, Lexington, Kentucky 40511
J.M. Holden
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506
Y. Wang
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506
P. Zhou
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, and Center for Applied Energy Research, University of Kentucky, Lexington, Kentucky 40511
P.C. Eklund
Affiliation:
Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, and Center for Applied Energy Research, University of Kentucky, Lexington, Kentucky 40511
C.C. Eloi
Affiliation:
Department of Chemistry, University of Kentucky, Lexington, Kentucky, 40506 and Center for Applied Energy Research, University of Kentucky, Lexington, Kentucky 40511
J.D. Robertson
Affiliation:
Department of Chemistry, University of Kentucky, Lexington, Kentucky, 40506 and Center for Applied Energy Research, University of Kentucky, Lexington, Kentucky 40511
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Abstract

C60 films simultaneously exposed at T = 300 K to oxygen and visible-ultraviolet light are found to exhibit rapid diffusion of oxygen into the deep bulk of the film. The diffusion rate is found to be ∼10 times faster in the presence of light. Vibrational and optical absorption spectroscopy indicate that the photoassisted reaction of O2 with solid C60 involves two coupled reactions: (i) the photoassisted diffusion of molecular oxygen into solid C60 and (ii) oxidation of C60.

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Articles
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Journal of Materials Research , Volume 8 , Issue 9 , September 1993 , pp. 2277 - 2281
Copyright
Copyright © Materials Research Society 1993

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References

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