Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-05T15:41:27.708Z Has data issue: false hasContentIssue false
  • English
  • Français

Controlled Deposition and Applied Field Alignment of Single Walled Carbon Nanotubes for CNT Device Fabrication.

Published online by Cambridge University Press:  11 February 2011

Jan Smits ,
Buzz Wincheski ,
JoAnne Ingram ,
Neal Watkins  and
Jeff Jordan
Jan Smits
Affiliation:
Lockheed Martin Space Operations
Buzz Wincheski
Affiliation:
NASA Langley Research Center
JoAnne Ingram
Affiliation:
Swales Aerospace Hampton VA, 23681
Neal Watkins
Affiliation:
NASA Langley Research Center
Jeff Jordan
Affiliation:
NASA Langley Research Center
Get access

Abstract

Carbon nanotubes (CNTs) offer great potential for advanced sensing devices due to their unique electronic transport properties. However, a significant obstacle to the realization of practical CNT devices is the formation of controlled, reliable and reproducible CNT to metallic contacts. In this work, a procedure for the deposition and alignment of CNTs onto metallic electrodes using chemically functionalized lithographic patterns is reported. This method uses photo and electron beam lithography to pattern simple Cr/Au thin film circuits on oxidized Si substrates. The circuits are then re-patterned with a self-assembled monolayer (SAM) of 3-aminopropyltriethoxysilane (APTES) to specify desired CNT locations between electrodes. The application of an electric field to the metallic contacts during the deposition of solution suspended single walled CNTs causes alignment of the CNTs in the field direction. This method consistently produces aligned CNTs in the defined locations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 739: Symposium H – Three-Dimensional Nanoengineered Assemblies , 2002 , H7.11
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Carbon Nanotubes: Synthesis, Structure, Properties and Applications; edited by Dresselhaus, M., Dresselhaus, G., Avouris, P., Springer-Verlag: Berlin, (2001).Google Scholar
2. Liu, J. et al, Chem. Phys Letters 303 125–129 (1999).Google Scholar
3. Wincheski, B., Smits, J., Namkung, M., Ingram, J., Watkins, N, Jordan, J., Louie, R, SEM Conference Proceedings, Spring (2002).Google Scholar
4. Lewenstein, J.C., Burgin, T. P., Ribayrol, A., Nagahara, L.A., and Tsui, R.K., Nano Letters, 2(5), 442–446 (2002).Google Scholar
5. Shipley 1805 PhotoresistGoogle Scholar
6. Nano 950 PMMA A2 Positive Radiation Sensitive Resist, MicroChem Corp, Newton, Ma.Google Scholar
7. Rinzler, A.G., et al, Appl. Phys. A, 67, 29–37 (1998).Google Scholar
8. Chen, X.Q., Saito, T., Yamada, H. and Matsushige, K.. Appl. Phys. Lett. 78, No. 23, 4 June (2001).Google Scholar
9. Nano Remover PG, MicroChem Corp, Newton, MA.Google Scholar
10. Digital Instruments Nanoscope IIIaGoogle Scholar
11. Smith, P.A. et al Appl. Phys. Lett. 77, No 9, 28 August (2000).Google Scholar
12. McEuen, P., Physics World, 13, 31–36, June (2000).Google Scholar