Fabrication and characterisation of photonic nanowires

Autor:	Fiona Byrne, Aine M. Whelan, Yuri Volkov, Gemma-Louise Davies, Jennifer Conroy, Yurii K. Gun'ko, Joseph E. McCarthy
Rok vydání:	2008
Předmět:	Sol-gel Nanostructure Materials science Fabrication Nanowires Annealing (metallurgy) nano-porous templates Nanowire Nanotechnology chemistry.chemical_compound chemistry Transmission electron microscopy Polystyrene Luminescence GeneralLiterature_REFERENCE(e.g. dictionaries encyclopedias glossaries)
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.810742
Popis:	PUBLISHED 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.
Databáze:	OpenAIRE
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