Numerical Analysis of Oxygen Adsorption on SnO₂ Surface Using Slab Geometry

Figure 3

Calculated coverage of the oxygen ions O⁻ and O₂⁻ and total coverage (O⁻+O₂⁻) versus temperature in dry synthetic air, for mobile (a) single-donor concentration, 𝑁_𝑑=2.5×10²⁴ m⁻³ and 𝐿=250 nm, and (b) single- and double-donor concentrations, 𝑁_𝑑=2.5×10²⁵ m⁻³, and 𝐿=15 nm.

(a)

(b)