Yes of course. I might recommend the "Wall-Selective Probing of Double-Walled Carbon Nanotubes Using Covalent Functionalization" by Delphine Bouilly and Richard Martel. As stated in the manuscript: "Covalent functionalization is introduced here as an effective approach to investigate DWNT devices. Measurements on functionalized DWNT transistors show that the electrical current is carried by the inner wall and provide unambiguous identification of the metallic or semiconducting character of both walls. New insights about current saturation at high bias in DWNTs are also presented as an illustration of new experiments unlocked by the method. The wall-selectivity of the functionalization not only enables selective optical and electrical probing of the DWNTs, but it also paves the way to designing novel electronic devices in which the inner wall is used for electrical transport while the outer wall chemically interacts with the environment."
hope that the following attached files will mach your need. Also if you need special books on carbon nanotubes please tell me, I have some of them. Regards