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Fabrication and characterisation of photonic nanowires

McCarthy, JE; Whelan, DM; Davies, G-L; Byrne, F; Conroy, J; Volkov, Y; Gun'ko, Y; (2008) Fabrication and characterisation of photonic nanowires. In: Gaburro, Z and Cabrini, S and Talapin, D, (eds.) (Proceedings) Conference on Nanophotonic Materials V. SPIE-INT SOC OPTICAL ENGINEERING Green open access

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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.

Type: Proceedings paper
Title: Fabrication and characterisation of photonic nanowires
Event: Conference on Nanophotonic Materials V
Location: San Diego, CA
Dates: 10 August 2008 - 12 August 2008
ISBN-13: 978-0-8194-7250-2
Open access status: An open access version is available from UCL Discovery
DOI: 10.1117/12.810742
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Nanowires, Sol-gel, Polystyrene, nano-porous templates
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10061856
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