Self-Assembled Linear Bundles of Single Wall Carbon Nanotubes and Their Alignment and Deposition as a Film in a dc Field

Citations Over TimeTop 10% of 2004 papers

Abstract

A one-step process of solubilization of single wall carbon nanotubes (SWCNT) in an organic solvent has enabled us to polarize them asymmetrically in a dc electric field. Quaternary ammonium ion-capped SWCNTs readily suspend in organic solvents; under the influence of a dc electric field, they assemble as stretched bundles anchored on the positive electrode. At low dc applied field (approximately 40 V), all of the SWCNTs from the suspension are deposited on the electrode, thus providing a simple methodology to design robust SWCNT films. At higher applied voltages (>100 V), the SWCNT bundles stretch out into the solution and orient themselves perpendicular to the electrode surface. The alignment of these bundles is responsive to the ON-OFF cycles of the applied electric field. The possibility of modulating the alignment of SWCNT in an electric field opens new ways to achieve electrical contacts in nano- to micro-devices.

Related Papers

• → Thermal Diffusivity of Single-Walled Carbon Nanotube Forest Measured by Laser Flash Method(2009)78 cited
• → Perpendicular Orientations in Polyethylene(1954)44 cited
• → Influence of acid treatments of carbon nanotube precursors on Ni/CNT in the synthesis of carbon nanotubes(2005)25 cited
• → Classification of Carbon Nanotubes(2019)14 cited
• การผลตและสมบตของทอนาโนคารบอน (FABRICATION AND PROPERTIES OF CARBON NANOTUBES)(2013)