Figure 2

Comparison of sputtered SnO2 and spin-coated SnO2 films. (a) SEM and (b) AFM images of 40 nm sputtered SnO2 film. (c) SEM and (d) AFM images of spin-coated SnO2 film.
Comparison of sputtered SnO2 and spin-coated SnO2 films. (a) SEM and (b) AFM images of 40 nm sputtered SnO2 film. (c) SEM and (d) AFM images of spin-coated SnO2 film.