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Directed assembly of SWNTs by electrostatic interactions and its application for making network transistors
Janie Cabana1, Matthieu Paillet, Richard Martel
1Université de Montréal, Québec H3T 1J4, Canada.
Langmuir : the ACS Journal of Surfaces and Colloids
|August 18, 2009
Summary
Researchers developed a new method for assembling single-wall carbon nanotubes (SWNTs) on substrates using electrostatic interactions. This technique enables the creation of dense SWNT networks for nanoelectronic devices.
Area of Science:
- Materials Science
- Nanotechnology
- Chemistry
Background:
- Single-wall carbon nanotubes (SWNTs) are crucial for nanoelectronics.
- Controlling SWNT assembly on substrates remains a significant challenge.
Purpose of the Study:
- To develop a general method for directed chemical assembly of SWNTs.
- To overcome the bottleneck in SWNT utilization for nanoelectronic devices.
Main Methods:
- Utilizing electrostatic interactions for SWNT assembly.
- Covalently functionalizing SWNT sidewalls and SiO(2) substrates with charged groups.
Main Results:
- Achieved dense networks of SWNTs on substrates.
- Demonstrated a selective and highly efficient method for processing.
Conclusions:
- The developed method effectively directs SWNT chemical assembly.
- This approach facilitates the fabrication of network field-effect transistors.
