Chemical modication has been performed on puried single walled carbon nanotubes. XPS spectrum shows that the peaksequent coupling reactions were carried out with diamine molecules to form intertube connections. Tripropylentetramine andphenylendiamine ...
Chemical modication has been performed on puried single walled carbon nanotubes. XPS spectrum shows that the peaksequent coupling reactions were carried out with diamine molecules to form intertube connections. Tripropylentetramine andphenylendiamine have been chosen as a molecular linker. End-to-side and end-to-end nanotube interconnections are formed andthen observed by atomic force microscopy (AFM). Statistical analysis made from AFM images shows around 30% junctions infunctionalized and less than 2% in pristine material. Remarkable features can be observed in the Raman spectra at dierentfunctionalization steps. Simple conductance measurements on bucky papers prepared from prestine nanotubes and from nanotubes. 2002 Elsevier Science B.V. All rights reserved.