Berlin 2018 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
CPP: Fachverband Chemische Physik und Polymerphysik
CPP 1: Focus: Molecularly Functionalized Low-Dimensional Systems I - organized by Antonio Setaro, Carola Meyer, Aravind Vijayaraghvan and Matteo Mannini
CPP 1.6: Topical Talk
Montag, 12. März 2018, 11:15–11:45, C 130
Self-organization and energy transfer in non-covalent porphyrin - carbon nanotube supramolecular hybrids — Géraud Delport2, Jean-Sébastien Lauret2, Stéphane Campidelli3, Fabien Vialla1, and •Christophe Voisin1 — 1Laboratoire Pierre Aigrain, Ecole Normale Supérieure, Université Paris Diderot, Paris, France — 2Laboratoire Aimé Cotton, Université Paris Saclay, Orsay, France — 3LICSEN, CEA, Saclay, France
Functionalization of nanostructures with organic dyes brings the power and flexibility of organic chemistry to the nano-world and extends considerably the range of applications of nanomaterials. Nevertheless, covalent grafting of molecules may be detrimental to the intrinsic properties of the nano-object, whereas purely noncovalent approaches often yield assemblies of poor stability. We developed a micelle assisted supramolecular chemistry to create stable noncovalent complexes of porphyrin molecules attached to single-wall carbon nanotubes. We show that the stability of this assembly is partly due to porphyrin-porphyrin intra-layer interactions yielding a self-organized layer of porphyrin molecules with long-range ordering of the porphyrin orientation with respect to the nanotube axis. This arrangement results in original optical properties of the compound with polarization selective energy transfer. We discuss possible applications of this approach to the metrology of carbon nanotubes.