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ZnO/PVA Macroscopic Fibers Bearing Anisotropic Photonic Properties

Published online by Cambridge University Press:  23 January 2013

Natacha Kinadjian ,
Marie-France Achard ,
Beatriz Julian-Lopez ,
Maryse Maugey ,
Philippe Poulin ,
Eric Prouzet  and
Rénal Backov
Natacha Kinadjian
Affiliation:
Centre de Recherche Paul Pascal, office 115, UPR 8641-CNRS, 115 Avenue Albert Schweitzer, 33600 Pessac, France. Department of Chemistry & Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1.
Marie-France Achard
Affiliation:
Centre de Recherche Paul Pascal, office 115, UPR 8641-CNRS, 115 Avenue Albert Schweitzer, 33600 Pessac, France.
Beatriz Julian-Lopez
Affiliation:
Department of organic and inorganic chemistry ESTCE - Universitat Jaume I. Avda. Sos Baynat s/n, 12071 Castellón, Spain.
Maryse Maugey
Affiliation:
Centre de Recherche Paul Pascal, office 115, UPR 8641-CNRS, 115 Avenue Albert Schweitzer, 33600 Pessac, France.
Philippe Poulin
Affiliation:
Centre de Recherche Paul Pascal, office 115, UPR 8641-CNRS, 115 Avenue Albert Schweitzer, 33600 Pessac, France.
Eric Prouzet
Affiliation:
Department of Chemistry & Waterloo Institute of Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1.
Rénal Backov*
Affiliation:
Centre de Recherche Paul Pascal, office 115, UPR 8641-CNRS, 115 Avenue Albert Schweitzer, 33600 Pessac, France.
*
*Email: nkinadji@uwaterloo.ca
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Abstract

Composite PVA/ZnO-nanorods fibers, synthesized through co-axial flux extrusion exhibit higher anisotropic photonic properties, both in absorption and emission, as a result of the collective alignment of the ZnO nanorods along the main axis of the PVA fiber. This photonic anisotropy is triggered by a synergistic interaction between the PVA matrix, stretched above Tg, and cooled down under strain. Compared with non-elongated fibers that present an isotropic emission, composite fibers previously submitted to a tensile stress absorb selectively UV emission when the polarized laser beam is parallel to the main axis of the fiber. In addition, their photoluminescence is also anisotropic, with a waveguide behavior along the fiber’s main axis.

Keywords

photoemissionfiberZn
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1512: Symposium FF – Semiconductor Nanowires—Optical and Electronic Characterization and Applications , 2013 , mrsf12-1512-ff04-33
Copyright
Copyright © Materials Research Society 2013

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References

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