Fabrication of large-scale graphene/2D-germanium heterostructure by intercalation

Guo Hui¹, Wang Xueyan¹, Bao De-Liang¹, Lu Hong-Liang¹, Zhang Yu-Yang^{1, 2}, Li Geng^{1, 2}, Wang Ye-Liang¹, Du Shi-Xuan^{1, 2, †}, Gao Hong-Jun^{1, 2}

Fabrication processes of Gr/2D-Ge heterostructures. (a), (b) Schematic of the fabrication processes; (c), (d) LEED patterns of the sample at (a), (b) stages, respectively.