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http://dx.doi.org/10.4191/KCERS.2002.39.5.467

Process Development of Aligning Carbon Nanotube from the Paste  

Lee, Jae-Kul (Department of Ceramic Engineering, Yonsei University)
Moon, Joo-Ho (Department of Ceramic Engineering, Yonsei University)
Lee, Dong-Gu (School of Material and System Engineering, Kumoh National University of Technology)
Publication Information
Abstract
Long Carbon Nanotubes(CNTs) were cut by diamond lapping film followed by observation using SEM. The paste was prepared by mixing shortened CNT powder, ${\alpha}$-terpineol used as a solvent, and ethylcellulose as a binder. This paste was deposited on glass substrate by screen printing and extruded by syringe. After screen printing, several post-treatments were performed to control the alignment of CNTs perpendicular to the substrate. The deposited CNTs were scratched by sand paper or diamond lapping film. It was also treated by attachment followed by an immediate detachment using the adhesive tape. SEM observation indicates that excellent vertical alignment of CNTs could be achieved by simple post-treatments from the screen printed-CNTs paste. Similar alignment of CNTs is also observed in the as-extruded CNTs paste.
Keywords
Carbon nanotubes; Alignment; Screen printing; Syringe extrusion;
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