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Massuyeau, F., Wery, J., Duvail, J.-L., Lefrant, S., Yaya, A., Ewels, C. & Faulques, E. (2015) Electronic interaction in composites of a conjugated polymer and carbon nanotubes: first-principles calculation and photophysical approaches. Beilstein J. Nanotechnol. 6 1138–1144.
Added by: Laurent Cournède (2016-03-10 18:36:41) |
| Type de référence: Article DOI: 10.3762/bjnano.6.115 Numéro d'identification (ISBN etc.): 2190-4286 Clé BibTeX: Massuyeau2015 Voir tous les détails bibliographiques  |
Catégories: PMN Mots-clés: composite, conjugated polymer, DFT calculations, emission, energy transfer, films, light-emitting-diodes, optical-properties, photoconductivity, photoluminescence, ppv, single wall carbon nanotubes, time-resolved photoluminescence, vinylene) Créateurs: Duvail, Ewels, Faulques, Lefrant, Massuyeau, Wery, Yaya Collection: Beilstein J. Nanotechnol. |
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| Résumé |
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The mechanisms that control the photophysics of composite films made of a semiconducting conjugated polymer (poly(paraphenylene vinylene), PPV) mixed with single-walled carbon nanotubes (SWNT) up to a concentration of 64 wt \% are determined by using photoexcitation techniques and density functional theory. Charge separation is confirmed experimentally by rapid quenching of PPV photoluminescence and changes in photocurrent starting at relatively low concentrations of SWNT. Calculations predict strong electronic interaction between the polymer and the SWNT network when nanotubes are semiconducting.
Added by: Laurent Cournède |