Interaction Between Fullerenes and Single-Wall Carbon Nanotubes: The Influence of Fullerene Size and Electronic Structure
Abstract:A series of fullerenes and endohedral metallofullerenes peapods have been synthesized by super-critical method in high filling rate. The interaction between SWNTs and various kinds of fullerenes (C60, C70, C78, C84) and metallofullerenes (Gd@C82, Er@C82, Ho@C82, Y@C82) has been further investigated. The slight blue shift of G-band in Raman spectra with respect to pristine SWNTs was attributed to the charge transfer from SWNTs to fullerenes cage. The obvious RBM shift strongly depended on the distance between the inner wall of the SWNTs and the fullerene cage and also partly associated with the electronic structure of the fullerene. These results indicated that the interaction between fullerenes and SWNTs, which was considered to be the van de walls interaction, can be influenced by the cage size and the kind of fullerenes.
Document Type: Research Article
Publication date: September 1, 2011
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