Oriented graphene nanoribbons embedded in hexagonal boron nitride trenches

Lingxiu Chen, Li He, Hui Shan Wang, Haomin Wang (), Shujie Tang, Chunxiao Cong, Hong Xie, Lei Li, Hui Xia, Tianxin Li, Tianru Wu, Daoli Zhang, Lianwen Deng, Ting Yu, Xiaoming Xie () and Mianheng Jiang
Additional contact information
Lingxiu Chen: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Li He: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Hui Shan Wang: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Haomin Wang: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Shujie Tang: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Chunxiao Cong: School of Physical and Mathematical Sciences, Nanyang Technological University
Hong Xie: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Lei Li: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Hui Xia: National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences
Tianxin Li: National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences
Tianru Wu: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Daoli Zhang: School of Optical and Electronic Information, Huazhong University of Science and Technology
Lianwen Deng: School of Physics and Electronics, Central South University
Ting Yu: School of Physical and Mathematical Sciences, Nanyang Technological University
Xiaoming Xie: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences
Mianheng Jiang: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences

Nature Communications, 2017, vol. 8, issue 1, 1-6

Abstract: Abstract 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.

Date: 2017
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DOI: 10.1038/ncomms14703

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