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| Separation of metallic from semiconducting single-walled carbon nanotubes |
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| Author(s): Krupke R, Hennrich F, von Lohneysen H, Kappes MM |
| Source: SCIENCE Volume: 301 Issue: 5631 Pages: 344-347 Published: JUL 18 2003 |
| Times Cited: 592 References: 22 |
| 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. |
| Document Type: Article |
| Language: English |
| Reprint Address: Krupke, R (reprint author), Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany |
Addresses:
1. Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany
2. Univ Karlsruhe, Inst Phys Chem, D-76128 Karlsruhe, Germany
3. Forschungszentrum Karlsruhe, Inst Festkorperphys, D-76021 Karlsruhe, Germany |
| Publisher: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA |
| Subject Category: Multidisciplinary Sciences |
| IDS Number: 702CG |
| ISSN: 0036-8075 |
| DOI: 10.1126/science.1086534 |
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| | | | | | | | | Record from Web of Science® | | | | | | | | | |