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We performed polarized infrared reflectivity measurements on magnetically oriented carbon nanotubes using conventional light sources as well as synchrotron radiation. A strong anisotropy in the far-infrared spectral range was found, indicating preferred orientation of metallic tubes. Much less effect is seen in the spectral region typical of semiconducting tubes. We propose an explanation based on...
Filling of single-wall carbon nanotubes with C 59 N azafullerene derivatives is reported from toluene solvent at ambient temperature. The filling is characterized by high-resolution transmission electron microscopy and Raman spectroscopy. The filling efficiency is the same as for C 60 fullerenes and the tube-azafullerene interaction is similar to the tube-C 60 interaction....
The interior of single-wall carbon nanotubes is studied by filling fullerenes into the one-dimensional nanospace inside the tubes using different filling methods. Filling from solution is demonstrated as efficient as filling from the vapor phase. Evidence for successful filling comes from a transformation of the encapsulated carbon atoms to a secondary tube centered inside the primary tube. Isotope-labeled...
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