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Journal of Nanomaterials
Volume 2014 (2014), Article ID 471718, 4 pages
http://dx.doi.org/10.1155/2014/471718
Research Article

Strain Distribution of Au and Ag Nanoparticles Embedded in Al2O3 Thin Film

1Laboratory of Nanomaterials and Sensors, School of Physics, Electronics and Communication, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
2Institute of Microelectronics and Information Technology, Wuhan University, Wuhan, Hubei 430072, China

Received 24 November 2013; Accepted 3 December 2013; Published 5 January 2014

Academic Editor: Wen Lei

Copyright © 2014 Honghua Huang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Au and Ag nanoparticles embedded in amorphous Al2O3 matrix are fabricated by the pulsed laser deposition (PLD) method and rapid thermal annealing (RTA) technique, which are confirmed by the experimental high-resolution transmission electron microscope (HRTEM) results, respectively. The strain distribution of Au and Ag nanoparticles embedded in the Al2O3 matrix is investigated by the finite-element (FE) calculations. The simulation results clearly indicate that both the Au and Ag nanoparticles incur compressive strain by the Al2O3 matrix. However, the compressive strain existing on the Au nanoparticle is much weaker than that on the Ag nanoparticle. This phenomenon can be attributed to the reason that Young’s modulus of Au is larger than that of Ag. This different strain distribution of Au and Ag nanoparticles in the same host matrix may have a significant influence on the technological potential applications of the Au-Ag alloy nanoparticles.