Ion synthesis and laser annealing of Cu nanoparticles in Al2O3 |
| |
Authors: | AL Stepanov VN Popok DE Hole IB Khaibullin |
| |
Institution: | I. Physikalisches Institut, Aachen Technical University, 52056 Aachen, Germany, DE School of Physics and Engineering Physics, G?teborg University and Chalmers University of Technology, 41296 G?teborg, Sweden, SE School of Engineering, University of Sussex, Brighton, BN1 9QH, UK, GB Kazan Physical-Technical Institute, Sibirsky Trakt 10/7, 420029 Kazan, Russia, RU
|
| |
Abstract: | Al2O3 samples with Cu nanoparticles, synthesised by ion implantation at 40 keV with a dose of 1×1017 ion/cm2 and a current density from 2.5 to 12.5 μA/cm2, were annealed using ten pulses from a KrF excimer laser with a single pulse fluence of 0.3 J/cm2. The copper depth distribution, formation and modification of metal nanoparticles under the ion implantation and laser treatment
were studied by Rutherford backscattering (RBS), energy dispersive X-ray (EDX) analysis, atomic force microscopy (AFM) and
optical spectroscopy. It was found that laser annealing leads to a reduction in the nanoparticle size without diffusion of
metal atoms into the bulk. The change in particle size and the possibility for oxidation of the copper particles are examined
in the framework of Mie theory. Calculations presented show that under excimer laser treatment, Cu nanoparticles are more
likely to be reduced in size than to undergo oxidation.
Received: 19 April 2001 / Accepted: 7 November 2001 / Published online: 23 January 2002 |
| |
Keywords: | PACS: 78 66 V 78 66 J 61 80 B 81 05 Y 78 66 |
本文献已被 SpringerLink 等数据库收录! |
|