Multiple Sharp Bendings of Carbon Nanotubes during Growth to Produce Zigzag Morphology
| Autor: | Dong-Wook Kim, Andrew I. Gapin, Joseph F. Aubuchon, Chiara Daraio, Li-Han Chen, Sungho Jin |
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| Rok vydání: | 2004 |
| Předmět: |
Materials science
Field (physics) Condensed matter physics business.industry Field line Mechanical Engineering Bioengineering Mechanical properties of carbon nanotubes General Chemistry Carbon nanotube Condensed Matter Physics law.invention Condensed Matter::Materials Science Optics Zigzag law Plasma-enhanced chemical vapor deposition Electric field Perpendicular General Materials Science business |
| Zdroj: | Nano Letters. 4:1781-1784 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/nl049121d |
| Popis: | Carbon nanotubes have been grown with a sharply defined zigzag structure by introducing changes in the direction of applied electric field during dc plasma enhanced chemical vapor deposition (PECVD). The nanotubes maintain the same diameter before and after each bend while preserving the catalyst particle at the tip of growing nanotubes. The bends have very sharp radii of curvature of only ∼25 nm. As a simple inclined field direction cannot produce such a zigzag growth due to the tendency of field lines intersecting perpendicular to the local surface, the bending has been introduced primarily by dramatically manipulating the electric field lines through controlled movement of field-concentrating conductor plates. |
| Databáze: | OpenAIRE |
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