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Thin Solid Films
Year: 2009  |  Volume: 517  |  Issue: 6  |  Page No.: 1917 - 1921

Horizontally oriented carbon nanotubes coated with nanocrystalline carbon

Neng-Kai Chang, Jung-Hui Hsu, Chih-Chung Su and Shuo-Hung Chang    

Abstract: Single-walled carbon nanotubes (CNTs) and multi-walled CNTs of length 2–5 mm were grown from Fe/Mo nanoparticles and Fe thin film catalyst, respectively, by thermal chemical vapor deposition. Following CNT growth, the CNTs were in-situ coated with nanocrystalline carbon shells of thickness 100–1500 nm. Horizontally oriented CNTs with carbon shells in the direction of the feeding gas were visible under a regular optical microscope. They were easily manipulated by optical manipulators, and CNT probes can thus be fabricated.

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