| 초록 |
For high-performance graphene transistor in which applied graphene for active channel, it is essential to make well size-controlled graphene nanoribbons (GNR). λ-DNA is a unique biomolecule that has suitable size (i.e., few nanometer scale) for the fabrication of 1D nanostructures. Thus, we demonstrate that λ-DNA can be applied for the highly aligned arrays of nanostructures by meniscus control on hydrophobic surfaces. On the hydrophobic surface such as Polydimethylsiloxane (PDMS), polymethylmethacrylate (PMMA) and graphene, individual λ-DNA is stretched and left behind from the pinning sites of a λ-DNA drolet by the moving meniscus. Highly aligned λ-DNA on PDMS substrate by molecular combing process was transferred to graphene substrate. As a result, DNA nanoribbons formed on graphene substrate were observed about 100 nm; we used "DNA-mask" for the controlled etching process to fabricate graphene nanoribbons which was used for graphene nanoribon transistor. |
