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Circular Graphene Platelets with Grain Size and Orientation Gradients Grown by Chemical Vapor Deposition
Author(s) -
Xin Xing,
Fei Zeyuan,
Ma Teng,
Chen Long,
Chen MaoLin,
Xu Chuan,
Qian Xitang,
Sun DongMing,
Ma XiuLiang,
Cheng HuiMing,
Ren Wencai
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201605451
Subject(s) - graphene , chemical vapor deposition , materials science , tungsten carbide , monolayer , carbide , grain size , nanotechnology , tungsten , chemical engineering , composite material , metallurgy , engineering
Monolayer circular graphene platelets with a grain structure gradient in the radial direction are synthesized by chemical vapor deposition on immiscible W–Cu substrates. Because of the different interactions and growth behaviors of graphene on Cu and tungsten carbide, such substrates cause the formation of grain size and orientation gradients through the competition between Cu and tungsten carbide in graphene growth.