2D $\mathbf{B}{\mathbf{e}}_3{\mathbf{B}}_2{\mathbf{C}}_3$:a stable direct-bandgap semiconductor with record-breaking carrier mobility, $8.1\times 10^5\mathbf{c}{\mathbf{m}}^2{\mathbf{V}}^{-1}{\mathbf{s}}^{-1}$

Xiao Wang, Xiaoxin Yang, Jiangyu Li

The Moore's law in the semiconducting industry has faltered as the three-dimensional (3D) Si-based transistors has approached their physical limit with the downscaling. The carrier…