Figure 1.
SEM surface images of TiO2 thin films deposited on window glass at (a) 250°C, (b) 350°C, (c) 450°C, and annealed at 500°C for 1 h. Inset of figures (a), (b) and (c) shows the cross-sectional SEM images of the corresponding TiO2 thin film.
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