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Chem. Phys. Lett. 380 (5-6), 774-779 [pdf] | ||
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Nanocomposite ta-C Films Prepared by the Filtered Vacuum Arc Process Using Ni Nano Dots on a Si Substrate |
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Churl Seung Lee, Tae-Young Kim,
Kwang-Ryeol Lee, Jae-Pyoung Ahn and Ki Hyun Yoon |
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Recently, structural manipulation of tetrahedral amorphous carbon (ta-C) film at the nanometer scale has attracted much attention. We demonstrate a novel method to obtain a nanocomposite film where nanoscale columns of graphitic phase are embedded in a tetrahedral amorphous carbon matrix. When using a Si substrate with nanosized Ni dots on the surface, graphitic columns grew selectively on the Ni dots, while a dense ta-C film was deposited on the bare Si surface. The growth of the graphitic columns is closely related to the nanosized Ni dots that catalyze the graphitic carbon formation in a filtered vacuum arc deposition condition. | ||
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