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Zn nanodot patterning in borosilicate glasses by electron irradiation

Published online by Cambridge University Press:  21 May 2015

Mohammed Mohammed Sabri ,
Russell J. Hand  and
Günter Möbus
Mohammed Mohammed Sabri*
Affiliation:
Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
Russell J. Hand
Affiliation:
Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
Günter Möbus
Affiliation:
Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
*
a)Address all correspondence to this author. e-mail: m.mohammed-sabri@sheffield.ac.uk
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Abstract

Metallic zinc nanoparticles are generated in two compositional ranges of borosilicate glasses upon 200 and 300 keV electron beam irradiation in a transmission electron microscope. Irradiation effects are studied either with a stationary electron beam as a time series or with spatially varying beams for line-scan patterning. The size of the zinc nanodots formed is inversely related to the distance from the center of the electron beam, and growth from 5 to 50 nm over time via ripening can be observed. Line-scan patterning via both thermal gun and field emission gun electron irradiation has been successfully achieved. Our findings also show the occurrence of self-organized particle ordering, such as formation of chains. Metal nanoparticles have a tendency to migrate toward the glass fragment center, unless high intensity radiation ablates the glass matrix, when Zn particles remain decorating the surface. High-resolution lattice imaging, scanning transmission electron microscopy, and electron energy loss spectroscopy are used to confirm particle identity.

Type
Articles
Information
Journal of Materials Research , Volume 30 , Issue 12 , 28 June 2015 , pp. 1914 - 1924
Copyright
Copyright © Materials Research Society 2015 

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References

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