Résumé:

Photo-active molecules are confined into single-wall carbon nanotubes to create 1D hybrid systems with new and original opto-electronic properties. This work deals with the encapsulation of oligothiophene and phtalocyanine molecules displaying strong optical absorption in the visible range, respectively around 400 and 670 nm. Encapsulation efficiency is investigated by Transmission Electron Microscopy and spatial resolved Electron Energy Loss Spectroscopy. The physical interaction is mainly investigated by optical spectroscopies. Raman spectra of the hybrid systems exhibit a striking dependence with the excitation energy which is correlated to the optical absorption energy of the photo-active molecule [1,2]. Close to the molecule resonance, the G-band can shift and the Radial Breathing Mode intensities strongly decrease, which suggest a significant photo-induced charge transfer between the photo-active molecules and the nanotubes.