High dielectric tunability of Ba(Zr0.2Ti0.8)O3-(Ba0.7Ca0.3)TiO3 thick films modified by a solution-immersion process

被引：10
|
作者：
Feng, Zuyong [1 ]
Wu, Nan [1 ]
Zhang, Wei [1 ]
Luo, Jie [1 ]
Tang, Xingui [1 ]
Cheng, Zhenxiang [2 ]
Shi, Dongqi [2 ]
Dou, Shixue [2 ]
机构：
[1] Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou 510006, Guangdong, Peoples R China
[2] Univ Wollongong, Inst Superconducting & Elect Mat, Squires Way, North Wollongong, NSW 2500, Australia
来源：
MATERIALS RESEARCH BULLETIN | 2016年 / 76卷
关键词：
Electronic materials; Chemical synthesis; Transmission electron microscopy; Dielectric properties; TEMPERATURE; BEHAVIOR;
D O I：
10.1016/j.materresbull.2016.01.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High-quality lead-free 0.5Ba(Zr0.2Ti0.8)O-3-0.5(Ba0.7Ca0.3)TiO3 thick films with the thickness of 8 mu m were prepared by screen printing with a solution-immersion process. The solution-modified films near the morphotropic phase boundary (MPB) showed very dense and homogenous microstructure with large grain size, and exhibited moderate dielectric constant of 1680 and low dielectric loss of 1.38% at 10 kHz with OV bias at room temperature. High dielectric tunability up to 76.7% at 12 kV/mm and 10 kHz was achieved in the modified films. The excellent dielectric properties associated with good microstructure and MPB composition, make the lead-free films be a promising candidate for dielectric tunable capacitor applications. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：384 / 388
页数：5
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