Resonant Raman study on bulk and isolated graphitic nanoribbons.
نویسندگان
چکیده
Carbonaceous materials have been shown to graphitize up to different levels upon heat treatment, depending on the characteristics of their defects and the temperature reached during the heat treatment. In the literature there are reports on the annealing of materials, such as thin carbon films, graphite fibers, polyparaphenylene (PPP)-basedcarbons, cup-stacked carbon nanotubes, diamond-like carbon films, and more recently graphitic nanoribbons and flakes of highly oriented pyrolytic graphite (HOPG). The general behavior upon heat treatment is an increase of sp hybridization of the carbon atoms, an enlargement of the in-plane crystallite size (2D order of the
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عنوان ژورنال:
- Small
دوره 5 23 شماره
صفحات -
تاریخ انتشار 2009