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A photolithographic process for fabrication of devices with isolated single-walled carbon nanotubes

Alexander Tselev1, Kyle Hatton1, Michael S Fuhrer2, Makarand Paranjape1 and Paola Barbara1

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We have successfully fabricated devices with isolated single-walled carbon nanotubes (SWNTs) using exclusively standard i-line (365 nm) photolithography. Catalyst islands were patterned with an SU-8-photoresist-based process. This method provides well-defined islands, down to 1 µm in size. The islands are clearly visible with an optical microscope and are used as alignment marks for optical alignment of subsequent layers. SWNTs were grown by chemical vapour deposition (CVD). Contacts to the nanotubes were fabricated by standard photolithography.


PACS

81.07.De Nanotubes

81.16.Nd Nanolithography

81.16.Hc Catalytic methods

81.15.Gh Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, etc.)

Subjects

Surfaces, interfaces and thin films

Nanoscale science and low-D systems

Dates

Issue 11 (November 2004)

Received 23 April 2004, in final form 3 August 2004

Published 3 September 2004



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