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Nano Research

Article Title

Space-confined growth of monolayer ReSe2 under a graphene layer on Au foils

Authors

Chunyu Xie, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China Center for Nanochemistry (CNC), Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Shaolong Jiang, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China Center for Nanochemistry (CNC), Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Xiaolong Zou, Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University, Shenzhen 518055, China
Yuanwei Sun, Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
Liyun Zhao, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
Min Hong, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China Center for Nanochemistry (CNC), Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Shulin Chen, Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
Yahuan Huan, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China Center for Nanochemistry (CNC), Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Jianping Shi, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China Center for Nanochemistry (CNC), Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Xiebo Zhou, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China Center for Nanochemistry (CNC), Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Zhepeng Zhang, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China Center for Nanochemistry (CNC), Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Pengfei Yang, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China Center for Nanochemistry (CNC), Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Yuping Shi, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China Center for Nanochemistry (CNC), Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Porun Liu, Centre for Clean Environment and Energy, Griffith University, Gold Coast 4222, Australia
Qing Zhang, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
Peng Gao, Electron Microscopy Laboratory, School of Physics, Peking University, Beijing 100871, China International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
Yanfeng Zhang, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China Center for Nanochemistry (CNC), Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Keywords

graphene, rhenium selenide, chemical vapor deposition, scanning tunneling microscopy, two-dimensional (2D) heterostructure

Abstract

Vertical heterostructures based on two-dimensional (2D) materials have attracted widespread interest for their numerous applications in electronic and optoelectronic devices. Herein, we report the direct construction of an abnormal graphene/ReSe2 stack on Au foils by a two-step chemical vapor deposition (CVD) strategy. During the second growth stage, monolayer ReSe2 is found to preferentially evolve at the interface between the first-grown graphene layer and the Au substrate. The unusual stacking behavior is unraveled by in-situ “cutting open” the upper graphene from the defects to expose the lower ReSe2 using scanning tunneling microscopy (STM). From combination of these results with density functional theory calculations, the domain boundaries and edge sites of graphene are proposed to be adsorption sites for Re and Se precursors, further facilitating the growth of ReSe2 at the van der Waals gap of graphene/Au. This work hereby offers an intriguing strategy for obtaining vertical 2D heterostructures featured with an ultra-clean interface and a designed stacking geometry.

Graphical Abstract

Publisher

Tsinghua University Press

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