Krupke, Ralph ; Heinrich, Frank ; Löhneysen, Hilbert v. ; Kappes, Manfred M. (2003)
Separation of Metallic from Semiconducting Single-Walled Carbon Nanotubes.
In: Science, 301 (5631)
doi: 10.1126/science.1086534
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We have developed a method to separate metallic from semiconducting single-walled carbon nanotubes from suspension using alternating current dielectrophoresis. Our method takes advantage of the difference of the relative dielectric constants of the two species with respect to the solvent, resulting in an opposite movement of metallic and semiconducting tubes along the electric field gradient. Metallic tubes are attracted toward a microelectrode array, leaving semiconducting tubes in the solvent. Proof of the effectiveness of separation is given by a comparative Raman spectroscopy study on the dielectrophoretically deposited tubes and on a reference sample.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2003 |
| Autor(en): | Krupke, Ralph ; Heinrich, Frank ; Löhneysen, Hilbert v. ; Kappes, Manfred M. |
| Art des Eintrags: | Bibliographie |
| Titel: | Separation of Metallic from Semiconducting Single-Walled Carbon Nanotubes |
| Sprache: | Englisch |
| Publikationsjahr: | 18 Juli 2003 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Science |
| Jahrgang/Volume einer Zeitschrift: | 301 |
| (Heft-)Nummer: | 5631 |
| DOI: | 10.1126/science.1086534 |
| Kurzbeschreibung (Abstract): | We have developed a method to separate metallic from semiconducting single-walled carbon nanotubes from suspension using alternating current dielectrophoresis. Our method takes advantage of the difference of the relative dielectric constants of the two species with respect to the solvent, resulting in an opposite movement of metallic and semiconducting tubes along the electric field gradient. Metallic tubes are attracted toward a microelectrode array, leaving semiconducting tubes in the solvent. Proof of the effectiveness of separation is given by a comparative Raman spectroscopy study on the dielectrophoretically deposited tubes and on a reference sample. |
| 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: | 08 Nov 2011 13:38 |
| Letzte Änderung: | 05 Mär 2013 09:55 |
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