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Silver filled single-wall carbon nanotubes—synthesis, structural and electronic properties

In our study we use methodology based on a wet chemistry process to fill single-wall carbon nanotubes (SWCNTs) with silver nanowires. The novelty of the study comes from long continuous silver nanowires incorporated in a SWCNT with a mean diameter of 1.22 nm. Using high resolution transmission electron microscopy and electron diffraction we evidence the formation of 100–250 nm long silver wires within SWCNTs. The electronic structure of Ag-SWCNTs is presented in comparison to the corresponding reference purified SWCNTs using electron energy-loss spectroscopy in transmission. The structural changes and the variation of the electronic properties are analysed with electron diffraction and the core-level excitations.