Large recoverable energy density with excellent thermal stability in Mn-modified NaNbO3-CaZrO3 lead-free thin films

被引：67

作者：

Luo, Bingcheng ^{[1
]}

Dong, Huijuan ^{[1
]}

Wang, Danyang ^{[2
]}

Jin, Kexin ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Dept Appl Phys, Xian, Shaanxi, Peoples R China

[2] Univ New South Wales, Sch Mat Sci & Engn, Kensington, NSW, Australia

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2018年 / 101卷 / 08期

关键词：

electrical properties; energy harvesting; lead-free ceramics; sodium; sodium compounds; thin films; NANBO3; PHASE; CERAMICS;

D O I：

10.1111/jace.15528

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Effect of Mn dopant on energy storage properties in lead-free NaNbO3-0.04CaZrO(3) (NNCZ) thin films was investigated. The leakage current was largely suppressed, whereas dielectric constant, breakdown fields, and the difference between maximum polarization and remnant polarization were improved significantly by Mn doping, resulting in a large enhancement of energy storage performance. A large recoverable energy storage density of similar to 19.64J/cm(3) and an excellent thermal stability (from 30 to 160 degrees C) were simultaneously achieved in the NNCZ thin film with 1mol% Mn addition. Our results ascertain the great potential of NNCZ lead-free thin films for the applications in energy storage devices over a wide temperature range.

引用

页码：3460 / 3467

页数：8

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