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Study on the Origin of Amorphous Carbon Peaks on Graphene Films Synthesized on Nickel Catalysts

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We present our investigation results on the origin of the morphological defects on graphene films synthesized by chemical vapor deposition method on nickel catalytic substrates. These defects are small-base-area (SBA) peaks with tens of nanometer heights, and they diminish the applicability of graphene films. From atomic force microscopy observations on the graphene films prepared in various ways, we found that significant portion of the SBA peaks is formed in the crevices on the nickel substrates. Our results may be useful for developing an efficient synthesis method to produce high-quality graphene films without the SBA peaks.
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Document Type: Research Article

Publication date: 01 July 2014

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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