Processing parameters affecting the properties of sol-gel-derived modified lead titanate thin films

Calcium modified lead titanate thin films have been prepared by spin-coating of aquo-diol solutions on platinized silicon substrates. The influence of the chemical processing parameters and of the heating rates on the crystallization of the films is studied. Different ferroelectric properties are measured in films prepared under different conditions. These differences are related to the crystalline phases and structural characteristics developed in the films during their preparation.