Field electron emission characteristics of the “marimo carbon”

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Carbon nanomaterials can be obtained by the decomposition of lower hydrocarbon molecules using oxidized diamond-supported group VIII metal catalysts [1]. The obtained product is considered to be a carbon composite nanomaterial, i.e., a composite of a diamond (sp3 carbon) and a fibrous nanocarbon with sp2 bondings, named as a “Marimo carbon”. It is of a scientific and technological interest that the marimo carbon is expected to yield a wide variety of physical and/or chemical properties. In this study, we measured the field emission characteristics of the “Marimo carbon” to investigate the relation between the characteristics and their fine structure.

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