Pi-stacking functionalization through micelles swelling : Application to the synthesis of single wall carbon nanotube/porphyrin complexes for energy transfer

Cyrielle Roquelet (1) , Jean‐sébastien Lauret (1) , Valérie Alain-Rizzo (2) , Christophe Voisin (3) , Romain Fleurier (4) , Morgan Delarue (1) , Damien Garrot (1) , Annick Loiseau (4) , Philippe Roussignol (3) , Jacques A. Delaire (2) , Emmanuelle Deleporte (1)

1 LPQM - Laboratoire de Photonique Quantique et Moléculaire
2 PPSM - Laboratoire de Photophysique et Photochimie Supramoléculaires et Macromoléculaires
3 LPA - Laboratoire Pierre Aigrain
4 LEM - ONERA - CNRS - Laboratoire d'étude des microstructures [Châtillon]

We report on a new, original and efficient method for p-stacking functionalization of single-wall carbon nanotubes. This method is applied to the synthesis of a high-yield light-harvesting system combining single-wall carbon nanotubes and porphyrin molecules. We developed a micelle-swelling technique that leads to controlled and stable complexes presenting an efficient energy transfer. We demonstrate the key role of the organic solvent in the functionalization mechanism. By swelling the micelles, the solvent helps the non-water-soluble porphyrins to reach the micelle core and allows a strong enhancement of the interaction between porphyrins and nanotubes. This technique opens new avenues for the functionalization of carbon nanostructures.

Domaines: Autre [cond-mat.other]

Cyrielle Roquelet, Jean‐sébastien Lauret, Valérie Alain-Rizzo, Christophe Voisin, Romain Fleurier, et al.. Pi-stacking functionalization through micelles swelling : Application to the synthesis of single wall carbon nanotube/porphyrin complexes for energy transfer. ChemPhysChem, 2010, 11, pp.1667-1672. ⟨hal-00495765⟩