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Sorting of Double-Walled Carbon Nanotubes According to Their Outer Wall Electronic Typeviaa Gel Permeation Method

Moore, Katherine E. and Pfohl, Moritz and Tune, Daniel D. and Hennrich, Frank and Dehm, Simone and Chakradhanula, Venkata Sai K. and Kübel, Christian and Krupke, Ralph and Flavel, Benjamin S. (2015):
Sorting of Double-Walled Carbon Nanotubes According to Their Outer Wall Electronic Typeviaa Gel Permeation Method.
9, In: ACS Nano, (4), pp. 3849-3857, ISSN 1936-0851, [Online-Edition: http://dx.doi.org/10.1021/nn506869h],
[Article]

Abstract

In this work, we demonstrate the application of the gel permeation technique to the sorting of double-walled carbon nanotubes (DWCNTs) according to their outer wall electronic type. Our method uses Sephacryl S-200 gel and yields sorted fractions of DWCNTs with impurities removed and highly enriched in nanotubes with either metallic (M) or semiconducting (S) outer walls. The prepared fractions are fully characterized using optical absorption spectroscopy, transmission electron microscopy, and atomic force microscopy, and the entire procedure is monitored in real time using process Raman analysis. The sorted DWCNTs are then integrated into single nanotube field effect transistors, allowing detailed electronic measurement of the transconductance properties of the four unique inner@outer wall combinations of S@S, S@M, M@S, and M@M.

Item Type: Article
Erschienen: 2015
Creators: Moore, Katherine E. and Pfohl, Moritz and Tune, Daniel D. and Hennrich, Frank and Dehm, Simone and Chakradhanula, Venkata Sai K. and Kübel, Christian and Krupke, Ralph and Flavel, Benjamin S.
Title: Sorting of Double-Walled Carbon Nanotubes According to Their Outer Wall Electronic Typeviaa Gel Permeation Method
Language: English
Abstract:

In this work, we demonstrate the application of the gel permeation technique to the sorting of double-walled carbon nanotubes (DWCNTs) according to their outer wall electronic type. Our method uses Sephacryl S-200 gel and yields sorted fractions of DWCNTs with impurities removed and highly enriched in nanotubes with either metallic (M) or semiconducting (S) outer walls. The prepared fractions are fully characterized using optical absorption spectroscopy, transmission electron microscopy, and atomic force microscopy, and the entire procedure is monitored in real time using process Raman analysis. The sorted DWCNTs are then integrated into single nanotube field effect transistors, allowing detailed electronic measurement of the transconductance properties of the four unique inner@outer wall combinations of S@S, S@M, M@S, and M@M.

Journal or Publication Title: ACS Nano
Volume: 9
Number: 4
Uncontrolled Keywords: carbon nanotube; double; separation; electronic character; sorting; purification; Sephacryl gel
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Molekulare Nanostrukturen
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 21 Oct 2015 13:17
Official URL: http://dx.doi.org/10.1021/nn506869h
Identification Number: doi:10.1021/nn506869h
Funders: We thank Unidym for providing DWCNT material. K.E.M acknowledges the Karlsruhe House of Young Scientists, the Playford Memorial Trust, and the Australian Microscopy and Microanalysis Research Facility (AMMRF). We are grateful to the Karlsruhe Nano Micro, Facility (KNMF) for access to the TEM facilities. This research was also supported by the Bundesministerium fur Bildung und Forschung (BMBF) as administered by POF-NanoMicro. B.S.F. gratefully acknowl- edges support from the Deutsche, Forschungsgemeinschaft's Emmy Noether Program under Grant No. FL 834/1-1.
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