Oriented graphene nanoribbons embedded in hexagonal boron nitride trenches

Graphene nanoribbons (GNRs) are ultra-narrow strips of graphene that have the potential to be used in high-performance graphene-based semiconductor electronics. However, controlled growth of GNRs on dielectric substrates remains a challenge. Here, we report the successful growth of GNRs directly on...

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Published inNature communications Vol. 8; no. 1; pp. 14703 - 6
Main Authors Chen, Lingxiu, He, Li, Wang, Hui Shan, Wang, Haomin, Tang, Shujie, Cong, Chunxiao, Xie, Hong, Li, Lei, Xia, Hui, Li, Tianxin, Wu, Tianru, Zhang, Daoli, Deng, Lianwen, Yu, Ting, Xie, Xiaoming, Jiang, Mianheng
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 09.03.2017
Nature Publishing Group
Nature Portfolio
Subjects
140/133
639/301/1005/1007
639/925/918/1052
639/925/930/1032
639/925/930/543
Benzene
Boron
Etching
Friction
Graphene
Humanities and Social Sciences
multidisciplinary
Physics
Science
Science (multidisciplinary)
Trenches
China
Singapore
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Summary:Graphene nanoribbons (GNRs) are ultra-narrow strips of graphene that have the potential to be used in high-performance graphene-based semiconductor electronics. However, controlled growth of GNRs on dielectric substrates remains a challenge. Here, we report the successful growth of GNRs directly on hexagonal boron nitride substrates with smooth edges and controllable widths using chemical vapour deposition. The approach is based on a type of template growth that allows for the in-plane epitaxy of mono-layered GNRs in nano-trenches on hexagonal boron nitride with edges following a zigzag direction. The embedded GNR channels show excellent electronic properties, even at room temperature. Such in-plane hetero-integration of GNRs, which is compatible with integrated circuit processing, creates a gapped channel with a width of a few benzene rings, enabling the development of digital integrated circuitry based on GNRs. Graphene nanoribbons are promising candidates for 2D material electrical interconnects; however, the top-down fabrication of nanoribbons has remained a challenge. Here, Chen et al . have used a hexagonal boron nitride template to grow narrow, integrated graphene nanoribbons with small bandgaps.
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These authors contributed equally to this work.
ISSN:2041-1723
2041-1723
DOI:10.1038/ncomms14703