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Bakour, A., Geschier, F., Baitoul, M., Wery, J., Massuyeau, F. & Faulques, E. (2016) Photoexcitations in fully organic nanocomposites of poly(3-hexylthiophene) and multiwalled carbon nanotubes. Mater. Chem. Phys. 171 83–90.
Added by: Richard Baschera (2016-10-31 10:20:35) Last edited by: Richard Baschera (2016-10-31 10:30:19) |
| Type de référence: Article DOI: 10.1016/j.matchemphys.2015.11.043 Numéro d'identification (ISBN etc.): 0254-0584 Clé BibTeX: Bakour2016a Voir tous les détails bibliographiques  |
Catégories: INTERNATIONAL, MIOPS Mots-clés: behavior, composite films, Composite materials, conjugated polymers, electronic interaction, in-situ polymerization, nanostructures, noncovalent, optical properties, photoluminescence spectroscopy, photovoltaic devices, polymers, Raman spectroscopy and scattering, regioregular poly(3-hexylthiophene), solar-cells, spectroscopy Créateurs: Baitoul, Bakour, Faulques, Geschier, Massuyeau, Wery Collection: Mater. Chem. Phys. |
Consultations : 1/733
Indice de consultation : 5% Indice de popularité : 1.25% |
| Résumé |
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Insertion effects of multiwalled carbon nanotubes (MWNTs) at different loads in the regioregular poly(3-hexylthiophene) (RR-P3HT) electroactive polymer are investigated with transmission electron microscopy (TEM), X-ray diffraction, infrared and optical absorption, photoluminescence (PL) and photoconductivity techniques. MWNTs in composites quench the deep red emission of P3HT. They also act as inhibitors of polymer aggregates favoring shorter conjugated segments during composite synthesis and the formation of a charge-transfer complex at the P3HT/MWNT interface through delocalization of pi electrons along the conjugated segments. Under photoexcitation, a significant fraction of excitons dissociates non radiatively with charge hopping towards the MWNTs network and triggers an augmentation of photoconductivity. (C) 2015 Elsevier B.V. All rights reserved.
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