Research Progress and Prospects of Single-Layer 2D Materials Xenes

Xenes, as a series of single-layer two-dimensional (2D) materials, present emerging properties in biological, electronics, medical and other relevant fields. This review introduces seven main Xenes materials (silicene, phosphorene, borophene, antimonene, stanene, germanene and bimetallene) demonstrating higher conductivity and flexibility and describes their current research works and new findings. Besides, current challenges such as those in stability and quality are concluded, and a prospective view on development of 2D Xenes materials in the future is brought out.