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Formation of Silver Metal Nanoclusters in MgO by MeV Ag Implantation

Published online by Cambridge University Press:  03 September 2012

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

Nanoclusters of Ag metal in MgO(100) single crystals was formed by implantation of 1.5 MeV silver ions at fluences of 6 x 1016 ion/cm2 and at 1.2 x 1017 ion/cm2, and subsequent annealing at temperatures between 600°C to 1100°C. The formation of the Ag metallic clusters was confirmed using optical absorption spectrophotometry by the absorption band at 430 nm. This is in agreement with the theoretical prediction using Mie's theory, with calculated average nanocluster size about 3 nm. Using ion channeling we confirmed that the orientation of the Ag nanoclusters was in the same direction of the host crystal. Using Z-scan we found the nonlinear refractive index of Ag implanted MgO to be 4.9 x 10-8 esu.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 438: Symposium A – Materials Modificaton and Synthesis by Ion Beam… , 1996 , 417
Copyright
Copyright © Materials Research Society 1997

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