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Proceedings Paper

Exploring the room temperature self-assembly of silica nanoparticle layers on optical fibres
Author(s): John Canning; Lachlan Lindoy; George Huyang; Masood Naqshbandi; Kevin Cook; Maxwell J. Crossley; Yanhua Luo; Gang-Ding Peng; Lars Glavind; Martin Kristensen
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Paper Abstract

The room temperature deposition of self-assembling silica nanoparticles onto D-shaped optical fibres (“D-fibre”), drawn from milled preforms fabricated by modified chemical vapor deposition, is studied and preliminary results reported here. Of various techniques explored, an automated “dip-and-withdraw” approach is found to give the most reproducible layers. Vertical dip-and-withdraw produces tapered layers with one end thicker (surface coverage < 0.85) than the other whilst horizontal dip-and-withdraw produces much more uniform layers over the core region. The problem of induced fracturing is shown to originate from the sides of the D-fibre flat, attributed to an extended, linear “coffee stain effect”, and is greatest for horizontal dip-and-withdraw. Under optimal preparation conditions they can be minimised and prevented from extending over the core region. Alternatively, these structures can be made periodic potentially enabling some unique structures to be fabricated since post-deposition of functional species will be highest in these cracks.

Paper Details

Date Published: 9 August 2013
PDF: 6 pages
Proc. SPIE 8793, Fourth International Conference on Smart Materials and Nanotechnology in Engineering, 87930J (9 August 2013); doi: 10.1117/12.2027934
Show Author Affiliations
John Canning, The Univ. of Sydney (Australia)
Lachlan Lindoy, The Univ. of Sydney (Australia)
George Huyang, The Univ. of Sydney (Australia)
Masood Naqshbandi, The Univ. of Sydney (Australia)
Kevin Cook, The Univ. of Sydney (Australia)
Maxwell J. Crossley, The Univ. of Sydney (Australia)
Yanhua Luo, The Univ. of New South Wales (Australia)
Gang-Ding Peng, The Univ. of New South Wales (Australia)
Lars Glavind, Aarhus Univ. (Denmark)
Martin Kristensen, Aarhus Univ. (Denmark)

Published in SPIE Proceedings Vol. 8793:
Fourth International Conference on Smart Materials and Nanotechnology in Engineering
Jayantha A. Epaarachchi; Alan Kin-tak Lau; Jinsong Leng, Editor(s)

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