Graphene Nanoribbon-based Films

Title
Graphene Nanoribbon-based Films
Authors
이재갑이경일김진규필립 존
Keywords
Graphene; Nano-ribbons; Films; Electrical properties
Issue Date
2010-09
Publisher
Diamond 2010
Abstract
Graphene nanoribbons (GNRs) have been fabricated with a thickness, width and length of ≈4 Å, ~ 5 nm and ~ 10 nm, respectively. A physical method for the formation of the GNRs utilizing crystalline graphite has been adopted. The material remains stable and suspended in ethyl alcohol for months without any observable surface modifications. GNR films have been formed on (100) Si wafers by deposition from the alcohol suspension. The GNR films have been analysed by atomic force microscopy (AFM) as well as focused ion beam (FIB) high resolution transmission electron microscopy (HRTEM). AFM images of the thin GNR deposits showed depth profiles of one atomic height (≈0.4 Å), indicating that the material was originally monolayer graphene (i.e., thickness is ≈4 Å). It was confirmed by FIB-HRTEM that, in thicker films, the GNRs are turbostratically stacked within the film structure. The electrical properties of the GNR films will be described.
URI
http://pubs.kist.re.kr/handle/201004/38288
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KIST Publication > Conference Paper
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