High performance terahertz anisotropic absorption in graphene–black phosphorus heterostructure
Liang Jinming1, 2, Lei Jiangtao2, Wang Yun2, Ding Yan2, Shen Yun1, 2, †, Deng Xiaohua2, ‡
       

Absorption spectra for various Fermi energy of graphene for GB nanoribbons along armchair direction (a) and zigzag direction (b).