fig14
Figure 14. (A) Density of state (DOS), (B) K+-ions adsorption energies, (C) K+-ions diffusion energy barriers of GeV4S8, V5S8, GeS2 and Ge, and (D-F) charge density difference maps with side views of K/GeV4S8, K/V5S8, and K/GeS2. (G and H) Structural models and corresponding charge density differences for the adsorption of K+ ions on {110} and {111} facets, (I and J) energy and diffusion barrier of BiFeO3. This figure is reproduced with permission from Ref.[134,137] Copyright 2024 Wiley-VCH.
