Towards Carbon-Nanotube Integrated Devices: Optically Controlled Parallel Integration of Single-Walled Carbon Nanotubes
Where it starts and where it goes? Controlled integration of single-walled carbon nanotubes (SWNTs) into pre-designed nano-architectures is one of the major challenges to be overcome for extensive scientific research and technological applications. Various serial assembly techniques have been proposed and developed. However, they are still a long way from practical applications due to the drawbacks on reliability, yield and cost. Here we demonstrate a laser-based strategy to achieve parallel integration of SWNTs into pre-designed nano-architectures through an optically controlled inÂ situ growth process. Optical driving forces originated from tip-induced optical near-field enhancement and laser beam polarization were applied in this study to realize the controlled placement of SWNTs at designated sites following wanted orientations on the nanometer scale. Parallel integration of SWNT arrays was achieved by adjusting laser beam diameter to cover interested nano-architectures. The laser-based process suggests an efficient and cost-effective approach for fabricating and integrating SWNT-based devices and circuits.
Y. Zhou et al., "Towards Carbon-Nanotube Integrated Devices: Optically Controlled Parallel Integration of Single-Walled Carbon Nanotubes," Nanotechnology, Institute of Physics - IOP Publishing, Jan 2010.
The definitive version is available at http://dx.doi.org/10.1088/0957-4484/21/31/315601
Mechanical and Aerospace Engineering
Article - Journal
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