Résumé
Dyes are encapsulated into single-walled carbon nanotubes to elaborate hy-brid nano-systems with tunable optical and electronic properties. The physical interaction be-tween the confined molecules and the host nanotube is a key factor1,2.From Raman spectroscopy and G-band shift measurements, a significant charge transfer from the confined dye to the nanotube is evidenced. A photo-activated electron transfer is also inferred for small diameter (~9 Å) semiconducting and metallic tubes.3 The key parameters that govern the charge transfer are the nanotube diameter and the electron donor or acceptor character of the molecules. Furthermore, photoluminescence intensities of nanotubes are either significantly en-hanced or quenched depending on the electron donor or acceptor character of the molecules.5The resonance Raman intensities of the confined molecules are strongly affected by applying an external pressure.4 DFT Calculations clearly allow to account for this effect.Therefore, molecule confinement into nanotubes is an efficient strategy for the engineering of new opto-electronic devices.