Abstract
Vertically aligned carbon nanotubes (CNTs) were synthesized on Fe-deposited silicon substrates using chemical vapor deposition. Scanning electron microscope investigations reveal that the morphology of the CNTs depends on several growth parameters including the reaction temperature, the size of catalyst nanoparticles, and the partial pressure of the reaction gas. When the reaction temperature rises or the concentration of carbon source gas increases, the diameter of CNTs gets larger, but the length becomes shorter. With decreasing thickness of the catalyst film, the diameter of the CNTs shrinks monotonically, but the length of the CNTs increases first, reaches a maximum and then decreases afterwards. These results indicate that the diameter and the length of the vertically aligned CNTs can be manipulated by selecting appropriate growth parameters.
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.
