fig16
![Research on carbon-based and metal-based negative electrode materials via DFT calculation for high potassium storage performance: a review](https://image.oaes.cc/37f9fa8a-26c3-4c29-965c-1a23c647b2d4/em3035.fig.16.jpg)
Figure 16. (A)The spin-polarized DOS of Ce-Ce, Ti-Ti, Ce-Ti, Ce-up, Ti-up, Ce- dn, and Ti-dn, respectively. Copyright 2019, Nano Structures[172]. (B) Band structures of Y-, Zr-, Nb-, and Mo-doped blue phosphorene by substitutional doping method. The blue lines (red lines) represent the spin-up (spin-down) channels. The Fermi level (EF) represented by a dotted line is set at E = 0 eV. The TDOS and PDOS of (C) Y-, (D) Zr-, (E) Nb-, and (F) Mo-doped blue phosphorene by substitutional doping method. The EF is set at zero energy and indicated by the vertical black dashed line. Copyright 2021, Thin Solid Films[173].