Yiduo Wang, Gang Wang, Yingwei Wang, Li Zhou, Jianlong Kang, Wanxin Zheng, Si Xiao, Guichuan Xing, Jun He
Two-dimensional molybdenum borides (MBenes) comprise a new class of 2D transition metal borides that exhibit potential photonics applications. Recently, the synthesis of individual single-layer Mo4/3 B2 T x (T = O, F, OH) MBene sheets has been realized, which attracted considerable attention in optoelectronics. However, there is still a lack of understanding and regulation of the photophysical processes of Mo4/3 B2 T x MBene. Here, we demonstrate that Mo4/3 B2 T x MBene exhibits a surface termination-dependent electronic structure, carrier dynamics, and nonlinear optical response over a wide wavelength range (500-1550 nm)...
March 21, 2024: Journal of Physical Chemistry Letters