Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/16927

Title: Ordered Ag nanocluster structures by vapor deposition on pre-patterned SiO2
Authors: Numazawa, Satoshi
Ranjan, Mukesh
Heinig, Karl-Heinz
Facsko, Stefan
Smith, Roger
Issue Date: 2011
Publisher: © IOP Publishing Ltd.
Citation: NUMAZAWA, S. ... et al, 2011. Ordered Ag nanocluster structures by vapor deposition on pre-patterned SiO2. Journal of Physics: Condensed Matter , 23 (22), 222203.
Abstract: Highly ordered Ag nanocluster structures have been grown on pre-patterned amorphous SiO2 surfaces by oblique angle physical vapor deposition at room temperature. Despite the small undulation of the rippled surface, the stripe-like Ag nanoclusters are very pronounced, reproducible and well separated. Computer modeling of the growth has been performed with a lattice-based kinetic Monte Carlo (KMC) method using a combination of a simplified inter-atomic potential and experimental transition barriers taken from the literature. An effective transition event classification method is introduced which allows a boost factor of several thousand compared to a traditional KMC approach, thus allowing experimental time scales to be modeled. The simulation predicts a low sticking probability for the arriving atoms, millisecond order lifetimes for single Ag adatoms and ≈1 nm square surface migration ranges of Ag adatoms. It is also shown that metal nucleations can trigger even on defect free surfaces. The simulations give excellent reproduction of the experimentally observed nanocluster growth patterns.
Description: This article was published in Journal of Physics: Condensed Matter [© IOP Publishing Ltd.] The definitive version is available at: http://dx.doi.org/10.1088/0953-8984/23/22/222203.
Sponsor: We thank the Deutsche Forschungsgemeinschaft Project HE2137/4-1 for financial support.
Version: Accepted for publication
DOI: 10.1088/0953-8984/23/22/222203
URI: https://dspace.lboro.ac.uk/2134/16927
Publisher Link: http://dx.doi.org/10.1088/0953-8984/23/22/222203
ISSN: 0953-8984
Appears in Collections:Published Articles (Maths)

Files associated with this item:

File Description SizeFormat
Ordered_Ag4RS.pdfAccepted version125.75 kBAdobe PDFView/Open


SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.