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Assembly of carbon nanotube devices by tip-induced optical trapping

Published online by Cambridge University Press:  23 June 2011

W. Xiong ,
Y.S. Zhou ,
M. Mitchell ,
J.B. Park ,
M. M. Samani ,
Y. Gao  and
Y.F. Lu
W. Xiong
Affiliation:
Department of Electrical Engineering, University of Nebraska-Lincoln,Lincoln, NE 68588-0511.
Y.S. Zhou
Affiliation:
Department of Electrical Engineering, University of Nebraska-Lincoln,Lincoln, NE 68588-0511.
M. Mitchell
Affiliation:
Department of Electrical Engineering, University of Nebraska-Lincoln,Lincoln, NE 68588-0511.
J.B. Park
Affiliation:
Department of Electrical Engineering, University of Nebraska-Lincoln,Lincoln, NE 68588-0511.
M. M. Samani
Affiliation:
Department of Electrical Engineering, University of Nebraska-Lincoln,Lincoln, NE 68588-0511.
Y. Gao
Affiliation:
Department of Electrical Engineering, University of Nebraska-Lincoln,Lincoln, NE 68588-0511.
Y.F. Lu
Affiliation:
Department of Electrical Engineering, University of Nebraska-Lincoln,Lincoln, NE 68588-0511.
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Abstract

Fabrication of nanoscale devices by assembling individual carbon nanotubes (CNTs) remains challenging despite enormous effort made in this field. Fulfilling the promise of CNTs requires more efficient assembly techniques. In this study, we have developed an in-situ assembly method for precise and cost-effective integration of CNTs using a laser-assisted chemical vapor deposition (LCVD) process. Results show that CNTs can be trapped between sharp tip-shaped electrodes due to the optical gradient forces around the tip apexes generated by a CO2 laser irradiation. This method enables the precise assembly of CNT-based field-effect transistors (FETs) and paves the way for the successful implementation of the CNT-based nanoelectronics.

Keywords

Claser-induced reactionoptical
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1365: Symposium TT – Laser-Material Interactions at Micro/Nanoscales , 2011 , mrss11-1365-tt09-12
Copyright
Copyright © Materials Research Society 2011

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References

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