Back to Search Start Over

Janus two-dimensional transition metal dichalcogenides

Authors :
Lei Zhang
Yong Xia
Xudong Li
Luying Li
Xiao Fu
Jiaji Cheng
Ruikun Pan
Source :
Journal of Applied Physics. 131:230902
Publication Year :
2022
Publisher :
AIP Publishing, 2022.

Abstract

Structural symmetry plays a crucial role in the electronic band structure and properties of two-dimensional materials. In contrast to graphene, monolayer transition metal dichalcogenides exhibit intrinsic in-plane asymmetry with suitable direct bandgaps and distinctive optical properties. Efforts have been devoted to breaking their out-of-plane mirror symmetry by applying external electric fields, vertical stacking, or functionalization. The successful fabrication of Janus transition metal dichalcogenides offers a synthetic strategy to breaking the vertical mirror symmetry, leading to a variety of novel properties, such as vertical piezoelectricity, Rashba spin splitting, and excellent exciton properties. Here, we discuss the universal fabrication approaches and unique properties of Janus transition metal dichalcogenides and further present a brief perspective on their potential applications and challenges.

Subjects

Subjects :
General Physics and Astronomy

Details

ISSN :
10897550 and 00218979
Volume :
131
Database :
OpenAIRE
Journal :
Journal of Applied Physics
Accession number :
edsair.doi...........be779f52354c3a6094e341374d823ada