Enhanced dielectric and energy -storage properties in ZnO-doped 0.9(0.94Na0.5Bi0.5TiO3-0.06BaTiO3)-0.1NaNbO3 ceramics

被引：85

作者：

Yao, Yuan ^{[1
]}

Li, Yong ^{[1
]}

Sun, Ningning ^{[1
]}

Du, Jinhua ^{[1
]}

Li, Xiaowei ^{[1
]}

Zhang, Liwen ^{[1
]}

Zhang, Qiwei ^{[1
]}

Hao, Xihong ^{[1
]}

机构：

[1] Inner Mongolia Univ Sci & Technol, Sch Met & Mat, Inner Mongolia Key Lab Ferroelect Related New Ene, Baotou 014010, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 06期

关键词：

Na0.5Bi0.5TiO3; Dielectric property; Energy-storage performance; Discharge property; ELECTRICAL-PROPERTIES; ANTIFERROELECTRIC CERAMICS; FERROELECTRIC PROPERTIES; THIN-FILM; LEAD; PERFORMANCE; CAPACITORS; DEPENDENCE; BEHAVIOR; DENSITY;

D O I：

10.1016/j.ceramint.2017.12.174

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：

[0.9(0.94Na(0.5)Bi(0.5)TiO(3)- 0.06BaTiO(3))- 0.1NaNbO(3)]-xZnO (NBT-BT-NN-xZnO, x = 0, 0.5 wt%, 1.0 wt%, 1.5 wt %, and 2.0 wt%) ferroelectric ceramics were fabricated using a conventional solid-state reaction method. The effects of ZnO content on dielectric, energy-storage and discharge properties were systematically investigated. Dielectric constant and difference between maximum and remanent polarization were significantly improved by ZnO doping. Dielectric constant of NBT-BT-NN-1.0-wt% ZnO was 3218 at 1 kHz and room temperature, i.e. one time bigger than that of pure NBT-BT-NN ceramic. As a consequence, a maximum energy-storage density of 1.27 J/cm(3) with a corresponding efficiency of 67% was obtained in NBT-BT-NN-1.0-wt% ZnO ceramic. Moreover, its pulsed discharge energy density was 1.17 J/cm(3), and 90% of which could be released in less than 300 ns. Therefore, ZnO doped NBT-BT-NN ceramic with a large energy-storage density and short release time could be a potential candidate for applications in high energy-storage capacitors.

引用

页码：5961 / 5966

页数：6

共 44 条

[1] Antiferroelectric Thin-Film Capacitors with High Energy-Storage Densities, Low Energy Losses, and Fast Discharge Times [J].