Disadvantages of Sol Gel Process

The sol-gel process has a few limitations, too. The real application of this synthesis route for the serial devices needs efforts in R&D. Much work and time are needed in optimizing the stability of the sol, the durability, and the reproducibility of the results for the production of sensor devices. Moreover, the alkoxide precursors are generally costlier. In spite of these disadvantages, the sol-gel process has been proven to be a highly applicable and industrially viable process for synthesizing nanocrystalline SnO2 gas sensors in the form of thin films.

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