PREPARATION AND PROPERTIES OF SOL-GEL DERIVED LA-DOPED PBTIO3 THIN-FILMS

被引：13

作者：

SHYU, JJ

MO, KL

机构：

[1] Department of Materials Engineering, Tatung Institute of Technology, Taipei

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1995年 / 34卷 / 10期

关键词：

FERROELECTRICS; FILMS; LEAD TITANATE; SOL-GEL; LANTHANUM;

D O I：

10.1143/JJAP.34.5683

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Lanthanum-doped lead titanate thin films with perovskite phase were fabricated by sol-gel spin-on process. Effect of lanthanum doping on the crystal structure, film orientation, microstructure, and ferroelectric/dielectric properties of the films were studied. The films showed various degrees of (100) orientation, depending mainly on the substrate used and the La content. The addition of La caused chang es in the film microstructure. Rosettes distributed in a matrix were observed for the (Pb0.7La0.2)TiO3 films. The dielectric constant of the films generally increased with the increasing La content and the heating temperature. (Pb0.7La0.2)TiO3 film heated at 800 degrees C has a dielectric constant of about 650.

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收藏

页码：5683 / 5688

页数：6

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