Title

Directed assembly of solution processed single-walled carbon nanotubes via dielectrophoresis: From aligned array to individual nanotube devices

Authors

Authors

P. Stokes;S. I. Khondaker

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Vac. Sci. Technol. B

Keywords

PHONON-SCATTERING; TRANSISTORS; ELECTRONICS; Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Physics, Applied

Abstract

The authors demonstrate directed assembly of high quality solution processed single-walled carbon nanotube (SWNT) devices via ac dielectrophoresis using commercially available SWNT solutions. By controlling the shape of the electrodes, concentration of the solution, and assembly time, the authors are able to control the assembly of SWNTs from dense arrays down to individual SWNT devices. Electronic transport studies of individual SWNT devices show field effect mobilities of up to 1380 cm(2)/V s for semiconducting SWNTs and saturation currents of up to similar to 15 mu A for metallic SWNTs. The field effect mobilities are more than an order of magnitude improvement over previous solution processed individual SWNT devices and close to the theoretical limit. Field effect transistors (FET) fabricated from aligned two-dimensional arrays of SWNT show field effect mobility as high as 123 cm(2)/V s, which is three orders of magnitude higher than the solution processed organic FET devices. This study shows promise for commercially available SWNT solution for the parallel fabrication of high quality nanoelectronic devices. (c) 2010 American Vacuum Society. [DOI: 10.1116/1.3501347]

Journal Title

Journal of Vacuum Science & Technology B

Volume

28

Issue/Number

6

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

C6B7

Last Page

C6B12

WOS Identifier

WOS:000285015200008

ISSN

1071-1023

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