Nucleation and orientation of sol-gel pzt-films on pt electrodes

Abstract
The nucleation and preferential orientation of Lead Zirconate-Titanate (PZT) films deposited by sol-gel spin-coating on Pt bottom electrodes is discussed. The crucial role of the Ti adhesion layer is highlighted. A qualitative crystallization model is presented which can explain the nucleation behavior of PZT-films with different Zr/Ti-ratios on different electrode structures as well as the preferential orientation of the PZT-film.