Spray Pyrolysis: Thin Film Coating

Spray pyrolysis (SP) is an efficient, simple, and cost-effective technique to synthesis high-quality thin films compared to other deposition routes. There are different types of SP units based on the type of pyrolysis reaction and nozzle used in spraying the solutions. The nature of thin film obtained from SP depends on various parameters and hence, parameters play a vital role in thin film growth. SP plays an important role in the synthesis of metal oxide film formations, which are used in a variety of fields such as supercapacitors, gas sensors, optoelectronic devices, and solar cells, etc. This chapter explores the working principle, different sub types of pyrolysis, the role of preparative parameters, and important components of spray pyrolysis. To understand the working of SP, the formation of the thin film as a case study has been discussed. The advantages and limitations of SP have been discussed in detail along with literature and application of SP in well diverse fields such as energy conversion, storage, and sensor.