Moore, Katherine E. ; Pfohl, Moritz ; Tune, Daniel D. ; Hennrich, Frank ; Dehm, Simone ; Chakradhanula, Venkata Sai K. ; Kübel, Christian ; Krupke, Ralph ; Flavel, Benjamin S. (2015)
Sorting of Double-Walled Carbon Nanotubes According to Their Outer Wall Electronic Typeviaa Gel Permeation Method.
In: ACS Nano, 9 (4)
doi: 10.1021/nn506869h
Artikel, Bibliographie
Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Moore, Katherine E. ; Pfohl, Moritz ; Tune, Daniel D. ; Hennrich, Frank ; Dehm, Simone ; Chakradhanula, Venkata Sai K. ; Kübel, Christian ; Krupke, Ralph ; Flavel, Benjamin S. |
| Art des Eintrags: | Bibliographie |
| Titel: | Sorting of Double-Walled Carbon Nanotubes According to Their Outer Wall Electronic Typeviaa Gel Permeation Method |
| Sprache: | Englisch |
| Publikationsjahr: | 10 Mai 2015 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | ACS Nano |
| Jahrgang/Volume einer Zeitschrift: | 9 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.1021/nn506869h |
| Kurzbeschreibung (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. |
| Freie Schlagworte: | carbon nanotube; double; separation; electronic character; sorting; purification; Sephacryl gel |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Molekulare Nanostrukturen 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 21 Okt 2015 13:17 |
| Letzte Änderung: | 21 Okt 2015 13:17 |
| PPN: | |
| Sponsoren: | 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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