Seamless lamination of a concave-convex architecture with single-layer graphene
- Authors
- Park, J.-H.[Park, J.-H.]; Lim, T.[Lim, T.]; Baik, J.[Baik, J.]; Seo, K.[Seo, K.]; Moon, Y.[Moon, Y.]; Park, N.[Park, N.]; Shin, H.-J.[Shin, H.-J.]; Kyu Kwak, S.[Kyu Kwak, S.]; Ju, S.[Ju, S.]; Real Ahn, J.[Real Ahn, J.]
- Issue Date
- 2015
- Citation
- Nanoscale, v.7, no.43, pp.18138 - 18146
- Journal Title
- Nanoscale
- Volume
- 7
- Number
- 43
- Start Page
- 18138
- End Page
- 18146
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/48478
- DOI
- 10.1039/c5nr04004c
- Abstract
- Graphene has been used as an electrode and channel material in electronic devices because of its superior physical properties. Recently, electronic devices have changed from a planar to a complicated three-dimensional (3D) geometry to overcome the limitations of planar devices. The evolution of electronic devices requires that graphene be adaptable to a 3D substrate. Here, we demonstrate that chemical-vapor-deposited single-layer graphene can be transferred onto a silicon dioxide substrate with a 3D geometry, such as a concave-convex architecture. A variety of silicon dioxide concave-convex architectures were uniformly and seamlessly laminated with graphene using a thermal treatment. The planar graphene was stretched to cover the concave-convex architecture, and the resulting strain on the curved graphene was spatially resolved by confocal Raman spectroscopy; molecular dynamic simulations were also conducted and supported the observations. Changes in electrical resistivity caused by the spatially varying strain induced as the graphene-silicon dioxide laminate varies dimensionally from 2D to 3D were measured by using a four-point probe. The resistivity measurements suggest that the electrical resistivity can be systematically controlled by the 3D geometry of the graphene-silicon dioxide laminate. This 3D graphene-insulator laminate will broaden the range of graphene applications beyond planar structures to 3D materials. © 2015 The Royal Society of Chemistry.
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