Title :
High precision fluidic alignment of carbon nanotubes using magnetic attraction on a metal catalyst
Author :
Shim, Joon S. ; Yun, Yeo-Heung ; Rust, Michael J. ; Do, Jaephil ; Shanov, Vesselin ; Schulz, Mark J. ; Ahn, Chong H.
Author_Institution :
Univ. of Cincinnati, Cincinnati
Abstract :
Precise self-assembly of carbon nanotubes (CNTs) by magnetic attraction on a catalyst and alignment by fluidic shear forces is reported in this work. The solution containing dispersed nanotubes was flowed in a microchannel and external magnetic field was applied by a permanent magnet for attracting a metal catalyst located at the end of the CNT. The assembly procedure and electrical characterization of the assembled nanotubes are presented and results are discussed. This work can provide a potential breakthrough for creating massively parallel CNT circuits for high performance nano electronic devices or nano biosensors.
Keywords :
biosensors; carbon nanotubes; magnetic fields; microchannel flow; nanobiotechnology; nanoelectronics; self-assembly; C; carbon nanotubes; dispersed nanotubes; electrical characterization; fluidic shear forces; high precision fluidic alignment; magnetic attraction; magnetic field; metal catalyst; microchannel; nano biosensors; nano electronic devices; permanent magnet; self-assembly; Assembly; Carbon nanotubes; Circuits; Electrodes; Magnetic fields; Magnetic forces; Magnetic materials; Nickel; Permanent magnets; Semiconductor nanotubes;
Conference_Titel :
Micro Electro Mechanical Systems, 2008. MEMS 2008. IEEE 21st International Conference on
Conference_Location :
Tucson, AZ
Print_ISBN :
978-1-4244-1792-6
Electronic_ISBN :
1084-6999
DOI :
10.1109/MEMSYS.2008.4443760
