杰纳斯
过渡金属
凝聚态物理
材料科学
不对称
石墨烯
单层
纳米技术
制作
对称性破坏
对称(几何)
堆积
物理
化学
几何学
医学
生物化学
替代医学
数学
病理
量子力学
核磁共振
催化作用
作者
Lei Zhang,Yong Xia,Xudong Li,Luying Li,Xiao Fu,Jiaji Cheng,Ruikun Pan
摘要
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.
科研通智能强力驱动
Strongly Powered by AbleSci AI