Significant enhancement of energy-storage performance of (Pb0.91La0.09)(Zr0.65Ti0.35)O3 relaxor ferroelectric thin films by Mn doping

被引：57
|
作者：
Liu, Yunying [1 ]
Hao, Xihong [2 ]
An, Shengli [2 ]
机构：
[1] Inner Mongolia Univ Sci & Technol, Sch Chem & Chem Engn, Baotou 014010, Peoples R China
[2] Inner Mongolia Univ Sci & Technol, Sch Met & Mat, Baotou 014010, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2013年 / 114卷 / 17期
基金：
中国国家自然科学基金;
关键词：
DENSITY; CAPACITORS; TITANATE; POLYMER;
D O I：
10.1063/1.4829029
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
1.5-mu m-thick (Pb0.91La0.09)(Zr0.65Ti0.35)O-3 (PLZT) relaxor ferroelectric (RFE) films doped by Mn from 0 to 5 mol. % were deposited on LaNiO3/Si(100) substrates via a sol-gel method. The microstructure, dielectric properties, and energy-storage performance of PLZT thin films were investigated as a function of Mn content. X-ray diffraction patterns and scanning electron microscopy indicated that all the films possessed a similar microstructure with pure perovskite phase. However, the dielectric constant, average breakdown fields, and the difference between maximum polarization and remnant polarization of the films were improved by Mn doping. A giant recoverable energy-storage density of 30.8 J/cm(3) was obtained in 1 mol. % Mn-doped films. Moreover, good temperature-dependent energy-storage stability was also observed in the films. These results indicated that Mn-doping was an efficient way to optimize the energy-storage behaviors of PLZT RFE films. (c) 2013 AIP Publishing LLC.
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页数：6
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