Single-walled carbon nanotubes (SWCNTs) are very important material for many applications. The chemical functionalization of carbon nanotubes such as covalent, noncovalent modifications, substitution of carbon atoms in walls, intercalation, filling allow modifying precisely the properties of carbon nanotubes. Here I perform the filling of SWCNTs with gallium selenide , lead halogenides , and rubidium iodide , and investigate the properties with Raman spectroscopy, near edge X-ray absorption fine structure spectroscopy, photoemission spectroscopy, optical absorption spectroscopy . It is shown that the introduced salt leads to the modification of the electronic properties of carbon nanotubes . The p-doping is observed. The successful filling of carbon nanotubes with high filling ratio and high doping level of SWCNTs can find applications in different fields.
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