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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Effect of conductive BaPbO3 electrode on the structural and dielectric properties of (Pb, Ba) ZrO3 films
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Effect of conductive BaPbO3 electrode on the structural and dielectric properties of (Pb, Ba) ZrO3 films

机译：BaPbO3导电电极对（Pb，Ba）ZrO3膜的结构和介电性能的影响

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摘要

Highly (1 1 1)-oriented (Pb, Ba)ZrO3 (PBZ) thin films were deposited on BaPbO3(BPO) electrode at different deposition temperatures and different thicknesses. As the deposition temperature increased, the dielectric constant and tunability increased from 150 and 4% to 500 and 56%, respectively. A current transient peak observed prior to dielectric degradation can be related to oxygen vacancy migration (redistribution) with space-charge- limited current transient or modulation of the electric conductivity. We infer that an interfacial layer lying between the PBZ and BPO effectively increases the oxygen vacancy (density similar to 10(20) cm(-3)) mobility by Pb4+ diffusing into the PBZ films.
机译：在不同的沉积温度和不同的厚度下，高度（1 1 1）取向的（Pb，Ba）ZrO3（PBZ）薄膜沉积在BaPbO3（BPO）电极上。随着沉积温度的升高，介电常数和可调谐性分别从150％和4％增加到500％和56％。在电介质降解之前观察到的电流瞬变峰值可能与氧空位迁移（再分布）有关，空间迁移限制了电流瞬变或对电导率进行了调节。我们推断，位于PBZ和BPO之间的界面层通过Pb4 +扩散到PBZ膜中有效地提高了氧空位（密度类似于10（20）cm（-3））的迁移率。

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