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Filling of single-walled carbon nanotubes with silver

  • Z. L. Zhang (a1), B. Li (a2), Z. J. Shi (a2), Z. N. Gu (a2), Z. Q. Xue (a3) and L-M. Peng (a4)...


We showed, by high-resolution transmission electron microscopy and spatially resolved electron energy-loss spectroscopy, that silver atoms have been introduced into single- walled carbon nanotubes (SWCNTs) produced by the arc-discharge method with solution phase chemistry by capillary filling, and a high efficiency of filling may be realized. Both partially filled and completely filled SWCNTs were observed, and the metal inside the tube may be regarded as one-dimensional silver nanowires with high length-to-diameter ratios. The length of filling ranged from several to tens of nanometers. Under strong electron beam irradiation the filling metal condensed to a particle, while the silver-containing SWCNT shrank and disintegrated.


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