Received 26 Jul 2013 | Accepted 13 Nov 2013 | Published 20 Dec 2013
DOI: 10.1038/ncomms3920
Development of an ultra-thin film comprised of a graphene membrane and carbon nanotube vein support
Xiaoyang Lin1,2, Peng Liu1,2, Yang Wei1,2, Qunqing Li1,2, Jiaping Wang1,2, Yang Wu1,2, Chen Feng1,2, Lina Zhang1,2,
Shoushan Fan1,2 & Kaili Jiang1,2
Graphene, exhibiting superior mechanical, thermal, optical and electronic properties, has attracted great interest. Considering it being one-atom-thick, and the reduced mechanical strength at grain boundaries, the fabrication of large-area suspended chemical vapour deposition graphene remains a challenge. Here we report the fabrication of an ultra-thin freestanding carbon nanotube/graphene hybrid film, inspired by the vein–membrane structure found in nature. Such a square-centimetre-sized hybrid film can realize the overlaying of large-area single-layer chemical vapour deposition graphene on to a porous vein-like carbon nanotube network. The vein–membrane-like hybrid film, with graphene suspended on the carbon nanotube meshes, possesses excellent mechanical performance, optical transparency and good electrical conductivity. The ultra-thin hybrid film features an electron transparency close to 90%, which makes it an ideal gate electrode in vacuum electronics and a highperformance sample support in transmission electron microscopy.
1 State
Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics and Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua
University, Beijing 100084, China. 2 Collaborative Innovation Center of Quantum Matter, Beijing 100084, China. Correspondence and requests for materials should be addressed to P.L. (email: pengliu@mail.tsinghua.edu.cn) or to K.J. (email: JiangKL@tsinghua.edu.cn).
NATURE COMMUNICATIONS | 4:2920 | DOI: 10.1038/ncomms3920 | www.nature.com/naturecommunications
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