My work in the Meccano synthesis group focuses on overcoming challenges towards manufacturing of paraciccal carbon nanotubes structure. In particular, we focus on a south-fledged carbon nanotubes, or what we call C&T forests. One of the roadblocks towards the applications of carbon nanotubes based devices is the density of the as grown carbon nanotubes forests is lower than what we would like. We have different types of reactors, CVD reactors to grow carbon nanotubes. One of them is this type of reactor, which is the hot wall CVD reactor. It's essentially a tube furnace with a quartz tube acting as the reactor walls. And we place the catalyst coated substrates inside the tube furnace. In our process, we use a mixture of helium and hydrogen and effylene. Once the gases are inside the reactor, they dissociate and they compose the surface of the catalyst nanoparticles. And then the carbon atoms diffuse on the surface of the catalyst nanoparticles and into the catalyst nanoparticles until they precipitate into a growing nanotube. In our group, we developed a comprehensive characterization methodology to study the spatial and temporal evolution of C&T forests morphology during growth. And this methodology is based on combining St. Patron X-rays scattering and mesotineration with real-time height measurements. This methodology revealed the evolution of density, diameter, and alignment of the carbon nanotubes during the growth process and led to revealing the successive stages of the collective growth process. Our group revealed the population behavior of the large group of nanotubes growing together simultaneously on the substrate. So the work that I did for my doctorate dissertation with Professor Hart focused on studying the collective mechanical and chemical coupling phenomenon in the growth of carbon nanotube forests. Our work revealed the spatial variation of morphology within a single carbon nanotube forest structure. And that is of particular practical significance because the properties, the transport properties are limited by this morphology gradients. And this has implications for applications such as electrical interconnects and terminator phrases. One of the issues with the commercial production of carbon nanotube based devices is that for applications such as electrical interconnects, the measured properties, transport properties of carbon nanotube forests usually fall below the theoretically predicted values. And our work on revealing the spatial variation of morphology within a single carbon nanotube forests helps explain why this discrepancy happens and also helps us improve the process in the future to produce more uniform carbon nanotube structures having tailored properties for applications.