Liquid-Crystalline Processing of Highly Oriented Carbon Nanotube Arrays for Thin-Film Transistors
- 15 June 2006
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 6 (7) , 1443-1448
- https://doi.org/10.1021/nl060608r
Abstract
We introduce a simple solution-based method for the fabrication of highly oriented carbon nanotube (CNT) arrays to be used for thin-film transistors. We exploit the liquid-crystalline behavior of a CNT solution near the receding contact line during tilted-drop casting and produced long-range nematic-like ordering of carbon nanotube stripes caused by confined micropatterned geometry. We further demonstrate that the performance of thin-film transistors based on these densely packed and uniformly oriented CNT arrays is largely improved compared to random CNTs. This approach has great potential in low-cost, large-scale processing of high-performance electronic devices based on high-density oriented CNT films with record electrical characteristics such as high conductance, low resistivity, and high career mobility.Keywords
This publication has 41 references indexed in Scilit:
- Self‐Assembly of Single‐Walled Carbon Nanotubes into a Sheet by Drop DryingAdvanced Materials, 2005
- Controlled Two-Dimensional Pattern of Spontaneously Aligned Carbon NanotubesNano Letters, 2005
- Rapid Fabrication of Two- and Three-Dimensional Colloidal Crystal Films via Confined Convective AssemblyAdvanced Functional Materials, 2005
- Macroscopic, Neat, Single-Walled Carbon Nanotube FibersScience, 2004
- Solution-processed inorganic semiconductorsJournal of Materials Chemistry, 2004
- Nanotube Surface Arrays: Weaving, Bending, and Assembling on Patterned SiliconPhysical Review Letters, 2004
- Electrical Nanoprobing of Semiconducting Carbon Nanotubes Using an Atomic Force MicroscopePhysical Review Letters, 2004
- High-performance thin-film transistors using semiconductor nanowires and nanoribbonsNature, 2003
- Large-Scale Hierarchical Organization of Nanowire Arrays for Integrated NanosystemsNano Letters, 2003
- Auto-Optimization of Dewetting Rates by Rim Instabilities in Slipping Polymer FilmsPhysical Review Letters, 2001