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Nano Research

Article Title

Recent advances in anisotropic two-dimensional materials and device applications

Authors

Jinlai Zhao, Institute of Microscale Optoelectronics and Second People’s Hospital, Health Science Center, Shenzhen University, Shenzhen 518060, China;Faculty of Information Technology, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau 999078, China;College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen 518060, China
Dingtao Ma, Faculty of Information Technology, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau 999078, China
Cong Wang, Institute of Microscale Optoelectronics and Second People’s Hospital, Health Science Center, Shenzhen University, Shenzhen 518060, China
Zhinan Guo, Institute of Microscale Optoelectronics and Second People’s Hospital, Health Science Center, Shenzhen University, Shenzhen 518060, China
Bin Zhang, Institute of Microscale Optoelectronics and Second People’s Hospital, Health Science Center, Shenzhen University, Shenzhen 518060, China
Jianqing Li, Faculty of Information Technology, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau 999078, China
Guohui Nie, Institute of Microscale Optoelectronics and Second People’s Hospital, Health Science Center, Shenzhen University, Shenzhen 518060, China
Ni Xie, Institute of Microscale Optoelectronics and Second People’s Hospital, Health Science Center, Shenzhen University, Shenzhen 518060, China
Han Zhang, Institute of Microscale Optoelectronics and Second People’s Hospital, Health Science Center, Shenzhen University, Shenzhen 518060, China

Keywords

two-dimensional (2D) materials, low-symmetry, anisotropic properties, black phosphorus, device applications

Abstract

Two-dimensional (2D) materials, such as transition metal dichalcogenides (TMDs), black phosphorus (BP), MXene and borophene, have aroused extensive attention since the discovery of graphene in 2004. They have wide range of applications in many research fields, such as optoelectronic devices, energy storage, catalysis, owing to their striking physical and chemical properties. Among them, anisotropic 2D material is one kind of 2D materials that possess different properties along different directions caused by the intrinsic anisotropic atoms’ arrangement of the 2D materials, mainly including BP, borophene, low-symmetry TMDs (ReSe2 and ReS2) and group IV monochalcogenides (SnS, SnSe, GeS, and GeSe). Recently, a series of new devices has been fabricated based on these anisotropic 2D materials. In this review, we start from a brief introduction of the classifications, crystal structures, preparation techniques, stability, as well as the strategy to discriminate the anisotropic characteristics of 2D materials. Then, the recent advanced applications including electronic devices, optoelectronic devices, thermoelectric devices and nanomechanical devices based on the anisotropic 2D materials both in experiment and theory have been summarized. Finally, the current challenges and prospects in device designs, integration, mechanical analysis, and micro-/nano-fabrication techniques related to anisotropic 2D materials have been discussed. This review is aimed to give a generalized knowledge of anisotropic 2D materials and their current devices applications, and thus inspiring the exploration and development of other kinds of new anisotropic 2D materials and various novel device applications.

Publisher

Tsinghua University Press

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