Berlin 2008 – wissenschaftliches Programm

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DF: Fachverband Dielektrische Festkörper

DF 9: Poster

DF 9.4: Poster

Dienstag, 26. Februar 2008, 15:00–18:00, Poster G

Interface properties of PbTiO₃ and PZT thin films on Pt-terminated substrates — •Salah Habouti¹, Claus-Henning Solterbeck¹, Mohammed Es-Souni¹, Vladimir Zaporojtchenko², and Franz Faupel² — ¹Institute for Materials and Surface Technology, University of Applied Sciences Kiel — ²Chair for Multicomponent Materials, Christian-Albrechts-Universtät zu Kiel

Electrical properties of Pb(Zr_0.52Ti_0.48)O₃ (PZT) and PbTiO₃ thin films are influenced by processes at the interface with the substrate. These interfaces are investigated for sol-gel processed thin films on Pt-terminated substrates. XPS depth profiles from samples prepared at various temperatures and in situ XRD measurements at different temperatures reveal the stochiometry and transformation kinetics at the interfaces. An intermediate phase with Pt and Pb emerges at the beginning of the film formation, but it disappears completely when the crystallization is complete.