Other Semiconductor Oxides

The results of the other sol-gel derived semiconductor oxide thin films are summarized in Table 1. It is to be noted that much attention has been given towards the sol-gel synthesis of SnO2 thin films as a gas sensor relative to the other semiconductor oxides listed in Table 1. The limited data currently available in the literature for other oxides, however, do suggest that the gas sensing characteristics of these oxides are similar to those exhibited by SnO2 as discussed in detail earlier. Further improvement in the gas sensing properties of these semiconductor oxides, using sol-gel technique, needs extensive research in near future.

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