Nanotech 2010

Effect of Source, Surfactant, and Deposition Process on Electronic Properties of Nanotube Arrays

D. Jain, N. Rouhi, C. Rutherglen, P.J. Burke
University Of California, Irvine, US

Keywords: carbon nanotubes, dielectrophoresis

Abstract:

Carbon nanotubes are currently being sought as a potential candidate in the device research area. However, a scalable manufacturing technology for nanotube devices with appropriate yield, reproducibility, and performance in various metrics (mobility, on/off ratio, cost, chemical sensitivity, sensor specificity, etc.) is currently lacking because of the variety of synthesis and deposition techniques and challenges due to the inherent differences in nanotube physical properties. One of the most commonly used step for the nanotube’s device fabrication is post synthesis purification and separation of as produced nanotubes. In order to de-bundle and sort the nanotubes, various surfactants are typically used. At present, it is not known how these surfactants affect the electronic properties of nanotube arrays and films made from depositing nanotubes using various techniques. While a complete understanding of the physical processes involved in these complex manufacturing steps is still lacking, in this work we have made an attempt to make a comprehensive study and report a raw set of empirical guidelines to guide future technology development in this area.
 
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