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Proceedings Paper

Fabrication and characterisation of photonic nanowires
Author(s): Joseph McCarthy; Áine M. Whelan; Gemma-Louise Davies; Fiona Byrne; Jennifer Conroy; Yuri Volkov; Yurii K. Gun'ko
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Paper Abstract

In recent years the application of nano-porous templates, such as anodic alumina and PTFE, in the production of cylindrical nanostructures has been vast. In our work we used porous alumina membranes to produce luminescent nanowires from polystyrene and silica. The silica wires were fabricated by infiltration of a TEOS derived sol-gel into 200 nm diameter porous alumina membranes with vacuum assistance followed by annealing at 400 °C. Polystyrene luminescent, magnetic nanowires have been fabricated using a similar technique. The wires were studied by optical, confocal and transmission electron microscopy. Silica nanowires demonstrated a broad luminescence spectrum due to interstitial carbon defect emission. Polystyrene nanowires have demonstrated strong emission and interesting magnetic behaviour. Both polystyrene and silica maghemite loaded nanowires show alignment to an external magnetic field. We believe that these silica and polystyrene nanowires might find potential applications in photonics, bio-sensing and biological imaging.

Paper Details

Date Published: 4 September 2008
PDF: 6 pages
Proc. SPIE 7030, Nanophotonic Materials V, 703019 (4 September 2008); doi: 10.1117/12.810742
Show Author Affiliations
Joseph McCarthy, The Univ. of Dublin, Trinity College (Ireland)
Áine M. Whelan, The Univ. of Dublin, Trinity College (Ireland)
Gemma-Louise Davies, The Univ. of Dublin, Trinity College (Ireland)
Fiona Byrne, The Univ. of Dublin, Trinity College (Ireland)
Jennifer Conroy, St. James's Hospital, Dublin (Ireland)
Yuri Volkov, St. James's Hospital, Dublin (Ireland)
Yurii K. Gun'ko, The Univ. of Dublin, Trinity College (Ireland)

Published in SPIE Proceedings Vol. 7030:
Nanophotonic Materials V
Zeno Gaburro; Stefano Cabrini; Dmitri Talapin, Editor(s)

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