Kataguna Kanoknukulchai creator Dutta, Joydeep Chairperson Hornyak, Louis Examination Committee Mohammed, Waleed S. Examination Committee Royal Thai GovernmentFellowship Scholarship Donor Asian Institute of Technology Fellowship Scholarship Donor text series technical report th Pathum Thani Asian Institute of Technology 2012 continuing eng 1online resource (68 p.) : ill. Carbon nanotubes (CNTs) have incomparable physical properties and their applicationsin various fields have been well established over the last two decades. The electronic properties of CNTs, however, significantly change depending on their chirality and the number of graphene walls. Therefore, first of all, theselective growth of graphene wallsis required, and ultimately, chiral selection technology should be established. In order to improve the selectivity and uniformity of CNTs, we have examined the growthof CNTs on aquartz substrate. Carbon nanotubes (CNTs) were fabricated by chemical vapor deposition (CVD) using a low vacuumprocess.Cobalt (Co) nanoparticles and molybdenum (Mo) sensitizerswere deposited as metal catalysts on quartz substratesby spray evaporation technique.Acetylene wasutilized asthe carbon feedstock and 5% H2/Ar was the carrier gas. The growth of CNTswas carried out at 650-750 °C for 30 minutes. In this work, optimum CNT synthesis conditions were determined for threereaction parametersnamely, concentration of catalyst solution, precursor flow rate,and reaction temperature. CNTsamples were characterized by scanning electron microscope (SEM) and transmission electron microscopy(TEM). A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Nanotechnology, School of Engineering and Technology Thesis (M. Sc.) - Asian Institute of Technology, 2012 Nanotubes, Carbon Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B03381 http://203.159.5.9/ait-thesis/detail.php?q=B03381 151014 20260818222941.0