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Journal of Materials Research Journal of Materials Research

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The intercalation of Ar into C60 films

Published online by Cambridge University Press:  31 January 2011

G. E. Gadd ,
P. J. Evans ,
S. Moricca  and
M. James
G. E. Gadd
Affiliation:
Australian Nuclear Science and Technology Organisation, Private Mail Bag 1, Menai, NSW 2234, Australia
P. J. Evans
Affiliation:
Australian Nuclear Science and Technology Organisation, Private Mail Bag 1, Menai, NSW 2234, Australia
S. Moricca
Affiliation:
Australian Nuclear Science and Technology Organisation, Private Mail Bag 1, Menai, NSW 2234, Australia
M. James
Affiliation:
Australian Nuclear Science and Technology Organisation, Private Mail Bag 1, Menai, NSW 2234, Australia
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Abstract

In this Communication we discuss how unimplanted and implanted films (Y and Au implanted) of C60, when hot isostatically pressed (HIPed) at a pressure of 170 MPa (1.7 kbar) of Ar and temperatures of 300 or 400 °C, show substantial uptake of Ar into the film. Rutherford backscattering (RBS) provides an effective method for elucidating film composition, showing the films to have ∼1.5 at.% of Ar, consistent with a stoichiometry close to Ar1 C60. The Ar was found to diffuse from the films when these were held in a vacuum at 300 °C. It could subsequently be reincorporated into the film by re-HIPing, with uptake of a similar amount of Ar. IR spectroscopy showed that the C60 IR absorptions remain unchanged throughout uptake of the Ar and its subsequent loss during heating at 300 °C. It appears that the Ar is trapped interstitially in the films outside the C60 cages.

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Articles
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Journal of Materials Research , Volume 12 , Issue 1 , January 1997 , pp. 1 - 4
Copyright
Copyright © Materials Research Society 1997

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References

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