Dielectric Tunability and Mechanism of Leakage Current in Liquid-Solid-Solution-Electrophoretic Deposition Derived Barium Strontium Titanate Thick Film

被引：0
作者：
Fan, Huiqing [1 ]
Li, Zhuo [1 ]
Fu, Yunfei [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Sch Mat Sci & Engn, Xian 710072, Peoples R China
来源：
FERROELECTRICS | 2010年 / 405卷
关键词：
Barium strontium titanate; thick film; liquid-solid-solution reaction; electrophoretic deposition; dielectric tunability; leakage current;
D O I：
10.1080/00150193.2010.483200
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Monodisperse (Ba0.6Sr0.4)TiO3 nanoparticles have been successfully synthesized by a liquid-solid-solution method at low temperature of 160 degrees C. The purity dependence on the concentration of mineralizer has been investigated. Subsequently, the (Ba0.6Sr0.4)TiO3 thick film has been deposited on Pt/Ti/SiO2/Si substrates by an electrophoretic deposition method and capacitance verse voltage (C-V) as well as leakage current density versus electrical field (J-E) characteristics has been studied. The dielectric tunability of 82.6% can be obtained and the dominant leakage mechanism is Schottky emission for positive biases as the Pt bottom electrode negatively biased.
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收藏
页码：198 / 203
页数：6
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