Low-temperature preparation of hydrothermal lead zirconate titanate thin films |
| |
Authors: | Kyung Won Seo Hyun Goo Kong |
| |
Affiliation: | (1) School of Chemical Engineering & Biotechnology, Ajou Univ., 442-749 Suwon, Korea |
| |
Abstract: | In preparing lead zirconate titanate thin films under hydrothermal conditions, we investigated the effects of concentrations of nutrient and mineralizer, reaction time and reaction temperature on crystallinity, grain size and shape. Experiments were performed in the ranges of 0.1-1.0M Pb(NO3)2, and 0-6.0M KOH with varying reaction time from 0 to 48 hours at 60-200 °C. In the experiment, lead zirconate titanate thin film of homogeneous crystalline grain was obtained through a 24 hour reaction with 0.4M Pb(NO3)2 and 5.0M KOH at 140 °C. The thickness of the film was 0.9-1.6 μm, and it exhibited a saturation polarization (Ps) of 18.3 μC/cm2, remnant polarization (Pr) of 7.4 μC/ cm2 and coercive field (Ec) of 0.41 kV/cm. The dielectric constant and loss (δ) measured at 1 kHz were approximately 1020 and 0.15, respectively. |
| |
Keywords: | Lead Zirconate Titanate Thin Films Hydrothermal Conditions Polarization Dielectric Constant |
本文献已被 SpringerLink 等数据库收录! |
|