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Formation of Nanocluster Colloids of Tin, Gold and Copper in Magnesium Oxide by MeV Ion Implantation

Published online by Cambridge University Press:  10 February 2011

R. L. Zimmerman ,
D. Ila ,
E. K. Williams ,
S. Sarkisov ,
D. B. Poker  and
D. K. Hensley
R. L. Zimmerman
Affiliation:
Center for Irradiation of Materials, Department of Natural and Physical Sciences, Alabama A&M University, P. O. Box 1447, Normal, AL, 35762-1447
D. Ila
Affiliation:
Center for Irradiation of Materials, Department of Natural and Physical Sciences, Alabama A&M University, P. O. Box 1447, Normal, AL, 35762-1447
E. K. Williams
Affiliation:
Center for Irradiation of Materials, Department of Natural and Physical Sciences, Alabama A&M University, P. O. Box 1447, Normal, AL, 35762-1447
S. Sarkisov
Affiliation:
Center for Irradiation of Materials, Department of Natural and Physical Sciences, Alabama A&M University, P. O. Box 1447, Normal, AL, 35762-1447
D. B. Poker
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831
D. K. Hensley
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831
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Abstract

We have implanted ions of Sn, Au and Cu at energies between 160 keV and 2.0 MeV into single crystals of MgO (100) at room temperature. The formation of nanoclusters was confirmed using photospectrometry, in combination with Mie's theory, which was indirect but nondestructive. Using Doyle's theory, as well as Rutherford Backscattering Spectrometry (RBS), we correlated the full width half maximum of the absorption bands to the estimated size of the metallic nanoclusters between 1–10 nm. These clusters were formed both by over implantation and by a combination of threshold fluence of the implanted species and post thermal annealing. The changes in the estimated size of the nanoclusters, after annealing at temperatures ranging from 500°C to 1000°C, were observed using photospectrometry.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 504: Symposium KK – Atomistic Mechanisms in Beam Synthesis & Irradiation… , 1997 , 375
Copyright
Copyright © Materials Research Society 1998

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References

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