Growth and Characterization of NI-Catalyzed Branched Carbon Nanotubes by RF-PECVD

Growth and Characterization of NI-Catalyzed Branched Carbon Nanotubes by RF-PECVD

Authors- Professor Dr. B. Purna Chandra Rao, R. Hari Babu, B .V. Ramam Rao, Professor G.Ramesh Babu

Abstract-The present work reports the growth of Y-and T-branched Carbon Nanotubes (CNTs) with and without SiO2 oxide layer by Nickel catalyst using Radio Frequency Plasma Enhanced Chemical Vapor Deposition (RF-PECVD). The branched CNTs are grown at very less temperature (700o C). Field Emission Scanning Electron Microscopy (FE-SEM) images show the growth of many Y-branched CNTs with some main stems have branches with long lengths and some of them have less lengths, the measured lengths of main stems are roughly about 1.5 um. It is also reported that the bents and kinks at the junctions are formed due to the changes in the direction of movements of the catalyst particles. We report the oriental growth of branched CNTs with oxide layer with grown lengths roughly about 2um. Selected Area Electron Diffraction Pattern (SAED) shows the presence of (0 0 2) graphitic plane, and we also explored the in-depth mechanism of branched CNTs.

DOI: /10.61463/ijset.vol.13.issue1.124