Proceedings of the Korean Vacuum Society Conference (한국진공학회:학술대회논문집)
- 2012.02a
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- Pages.574-574
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- 2012
Carbon Nanoscrolls from CVD Grown Graphene
- Jang, A-Rang (BK 21 Physics Research Division, Department of Energy Science, Institute of Basic Science, SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University) ;
- Shin, Hyeon-Suk (Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology) ;
- Kang, Dae-Joon (BK 21 Physics Research Division, Department of Energy Science, Institute of Basic Science, SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University)
- Published : 2012.02.08
Abstract
We report a simple way of fabricating high-quality carbon nanoscrolls (CNSs) by taking advantage of strain relief due to large difference in strain at the interface of graphene and underlying layer. This method allows strain-controlled self rolling-up of monolayer graphene during etching process at predefined positions on SiO2/Si substrates by photolithography. The size and the length of the CNSs can be easily controlled by adjusting the thickness of the underlying layer and by pre-patterning. Raman spectroscopy studies show that the CNSs is free of significant defects, and the electronic structure and phonon dispersion are slightly different from those of two-dimensional graphene. The preparation of high-quality CNSs may open up new opportunities for both fundamental and applied research of CNSs.