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  Stacking sequence and interlayer coupling in few-layer graphene revealed by in situ imaging

Wang, Z.-J., Dong, J., Cui, Y., Eres, G., Timpe, O., Fu, Q., et al. (2016). Stacking sequence and interlayer coupling in few-layer graphene revealed by in situ imaging. Nature Communications, 7: 13256. doi:10.1038/ncomms13256.

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 Creators:
Wang, Zhu-Jun1, Author           
Dong, Jichen2, Author
Cui, Yi3, Author
Eres, Gyula4, Author
Timpe, Olaf1, Author           
Fu, Qiang5, Author
Ding, Feng2, Author
Schlögl, Robert1, Author           
Willinger, Marc Georg1, Author           
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
2Institute of Textiles and Clothing, Hong Kong Polytechnic University, Hong Kong 999077, China, ou_persistent22              
3Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China, ou_persistent22              
4Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA, ou_persistent22              
5State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, ou_persistent22              

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 Abstract: In the transition from graphene to graphite, the addition of each individual graphene layer modifies the electronic structure and produces a different material with unique properties. Controlled growth of few-layer graphene is therefore of fundamental interest and will provide access to materials with engineered electronic structure. Here we combine isothermal growth and etching experiments with in situ scanning electron microscopy to reveal the stacking sequence and interlayer coupling strength in few-layer graphene. The observed layer-dependent etching rates reveal the relative strength of the graphene–graphene and graphene–substrate interaction and the resulting mode of adlayer growth. Scanning tunnelling microscopy and density functional theory calculations confirm a strong coupling between graphene edge atoms and platinum. Simulated etching confirms that etching can be viewed as reversed growth. This work demonstrates that real-time imaging under controlled atmosphere is a powerful method for designing synthesis protocols for sp2 carbon nanostructures in between graphene and graphite.

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 Dates: 2016-03-122016-09-132016-10-19
 Publication Status: Published online
 Pages: 12
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/ncomms13256
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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: 12 Volume / Issue: 7 Sequence Number: 13256 Start / End Page: - Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723