*3.8. Comparison of Other Methods to the Ti-Doped SnO2 Method*

Table 5 shows some literature about the Ti-doped SnO2 thin film under different methods (e.g., sol-gel and ultrasonic spray). We listed the optical and electrical properties in Table 5 from the literature and this study. From Table 5, it can be seen that the RF sputter method has some better optical and electrical properties than sol-gel. However, the cost of the sputtering method is more expansive.


**Table 5.** A comparison of the values of film properties in this study with other methods.
