Abstract
Individual carbon nanotubes are filled with fullerene molecules directly on the substrate.Two different oxidation techniques for opening the tubes prior to the filling, annealing inair, and acid treatment, are compared. High-resolution transmission electron microscopyimages indicate that both methods induce defects on the sidewalls of the nanotubes. Inthe case of acid treatment, the inner walls can be damaged without affectingthe outer walls, while the inner walls are opened along with the outer ones byheating in air. The effect of acid treatment on the tubes is much stronger thanknown from bulk samples. In contrast to previous studies, we find amorphouscarbon inside the nanotubes after oxidation, and an additional high-temperatureannealing step is needed to remove these plugs in order to open the tubes for filling.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
