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Mbarek, M., Garreau, A., Massuyeau, F., Alimi, K., Wery, J., Faulques, E. & Duvail, J.-L. (2019) Template process for engineering the photoluminescence of PVK and PPV-based nanowires. Journal of Applied Polymer Science, 48201.
Added by: Richard Baschera (2019-08-22 13:58:11) Last edited by: Richard Baschera (2019-08-22 14:01:22) |
| Type de référence: Article DOI: 10.1002/app.48201 Clé BibTeX: Mbarek2019 Voir tous les détails bibliographiques  |
Catégories: IMN, INTERNATIONAL, MIOPS, PMN Créateurs: Alimi, Duvail, Faulques, Garreau, Massuyeau, Mbarek, Wery Collection: Journal of Applied Polymer Science |
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| Résumé |
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Blends or stacking layers of two complementary materials are the dominant methods to get a strong donor-acceptor behavior for in-solution-processed thin film devices. These methods result in different local arrangement of the two species, a central point for tuning the donor-acceptor. In this work, it is proposed to organize a donor (poly[vinylcarbazole], PVK) and an acceptor (poly[para-phenylenevinylene], PPV) in a nanowire geometry. A two-step template process was used to fabricate coaxial nanowires with PPV and PVK alternatively as the core or the shell material, as shown by morphological characterization and micro-Raman spectroscopy study. The differences of the photoluminescence properties of these two types of coaxial nanowires compared with those of PVK-PPV blend nanowires and of pure PPV and PVK nanowires are discussed by considering the local polymer arrangement and the exciton diffusion length. Nano-sources, as well as nanostructured light emitting diodes, could take advantage of this 1D-like morphology for light emission control. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48201.
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