Study of ferroelectric properties of spray pyrolysis deposited cesium nitrate films

Cesium nitrate (CsNO3) films were prepared by ultrasonic spray pyrolysis technique at different substrate temperatures (Ts) and their ferroelectric and switching properties were examined. The morphology of the deposited films was studied using FESEM. The ferroelectric properties were optimized based on remanent polarization as a function of substrate temperature. The switching response was studied using pulse width technique. The switching parameters such as effective dimensionality, switching time, and nucleation rate were extracted using finite grain model (FGM). The width of reading pulse shows significant effect on switching transients.