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Ruoff, Rodney S.
Center for Multidimensional Carbon Materials (CMCM)
Research Interests
  • Next generation carbons, ultrathin sp3-bonded carbon sheets, negative curvature (‘Schwartzites’) carbons, sp3/sp2 hybrid carbon materials, model compounds for novel carbon materials, reaction mechanisms

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Controllable seeding of single crystal graphene islands from graphene oxide flakes

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Title
Controllable seeding of single crystal graphene islands from graphene oxide flakes
Author
Li, QiongyuZhang, CankunLin, WeiyiHuang, ZhiyiZhang, LiliLi, HongyangChen, XiangpingCai, WeiweiRuoff, Rodney S.Chen, Shanshan
Issue Date
2014-11
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CARBON, v.79, no.1, pp.406 - 412
Abstract
Graphene oxide (G-O) flakes were used to seed the growth of single crystal graphene islands by chemical vapor deposition (CVD) on Cu foil. Such islands have the G-O seed (which converts to a 'reduced graphene oxide' (rG-O) seed due to the CVD growth conditions used) roughly in the center of the islands. The lateral growth of such single crystal graphene islands was studied by carbon isotope labeling and Raman spectroscopy, scanning and transmission electron microscopy and selected area electron diffraction. By changing the concentration of G-O in the aqueous dispersion used to deposit the G-O flakes onto the Cu foil by dip-coating, the size of the seeded graphene islands could be precisely controlled on the Cu foil. The crystal orientation of the single crystal graphene islands was found to be identical to that of the G-O seeds.
URI
https://scholarworks.unist.ac.kr/handle/201301/5856
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84905636348
DOI
10.1016/j.carbon.2014.07.083
ISSN
0008-6223
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CHM_Journal Papers
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