Entry Date:
October 19, 2007

In-Situ Sample Rotation as a Tool to Understand Nanotube Growth

Principal Investigator Jing Kong


A new tool to study the properties of Carbon Nanotube synthesis during the Chemical Vapor Deposition (CVD) process is described. By rotating a sample of carbon nanotubes (CNTs) during the CVD process their alignment with respect to the substrate could be changed. This makes a time resolved investigation of carbon nanotube behavior during growth possible. As an example, the settling, i.e. the interaction of CNTs with the ground, was examined. A constant settling rate over time was found that depended on the flow rate and temperature gradient above the sample.