Fig. 7.

a Band structures of 2D Te under different biaxial strains with SOC. Adapted with permission from [82]. Copyright 2016, arXiv. b, c Band structures and outline of the bottom CB (top of c) and top VB band (bottom of c) in the first Brillouin zone. Adapted with permission from [83]. Copyright 2017, WILEY–VCH. d Position of the VBM and CBM. e Bandgaps. f Profile of band edge energies as the number of layers varies. g Effective masses of electrons and holes as the number of layers vary. Adapted with permission from [84]. Copyright 2018, American Chemical Society