2D hetero-structures based on transition metal dichalcogenides: fabrication, properties and applications

Recently, two dimensional transition metal dichalcogenides MX2 (M = Mo, W, etc; X = S, Se, Te) have ignited immense interests because of their unique structural and physical properties for the potential applications in the nano-optoelectronics, valley-spintronics etc. In terms of the structural compatibility and van der Waals interaction, two dimensional (2D) MX2 layers can be fabricated into various lateral and vertical hetero-structures. The atomically-thin hetero-structures comprising different layered MX2 provide a new platform for exploring fundamental physics and device technologies with unprecedented phenomenon and extraordinary functionalities. In this review, we report the recent progress about the fabrication, properties and applications of 2D hetero-structures based on transition metal dichalcogenides. (C) 2017 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.