Diameter selective reaction processes of single-wall carbon nanotubes

2020-03-06 14:11:24

carbon inner Diameter nanotubes C70

责任者: Simon, F.;Kukovecz, A.;Kramberger, C.;Pfeiffer, R.;Hasi, F.;Kuzmany, H.;Kataura, H. 单位: Inst. fur Materphysik, Univ. Wien, Austria 来源出处: Physical Review B (Condensed Matter and Materials Physics)(Phys. Rev., B, Condens, Matter Mater. Phys. (USA)),2005/04/15,71(16):165439-1 摘要: A method is presented which allows the study of diameter selective reactions in single-wall carbon nanotubes with an unprecedented accuracy. It is based on the transformation of fullerene peapods into double-wall carbon nanotubes and the study of the resulting diameter distribution of the inner nanotubes with Raman spectroscopy. This yields a spectral resolution increase of about 40 for the modes of different tubes. The method is demonstrated for the diameter selective healing of nanotube defects and yield from C70 peapod samples. The growth of very small diameter inner tubes from C70 peapods is demonstrated, which challenges the models of inner nanotube formation. An anomalous absence of middiameter inner tubes is explained by the suppressed amount of C70 peapods in the transition region between standing and lying C70 configurations 关键词: carbon nanotubes;fullerenes;phase transformations;Raman spectra;diameter selective reactions;single-wall carbon nanotubes;fullerene peapods;double-wall carbon nanotubes;Raman spectroscopy;spectral resolution;nanotube defects;middiameter inner tubes;C70 configurations;C70