Lead-free relaxor ferroelectric ceramics with high optical transparency and energy storage ability

被引：312
作者：
Qu, Bingyue [1 ]
Du, Hongliang [2 ]
Yang, Zetian [2 ]
机构：
[1] Jilin Univ, Coll Phys, Changchun 130012, Peoples R China
[2] Air Force Engn Univ, Coll Sci, Xian 710051, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2016年 / 4卷 / 09期
基金：
中国博士后科学基金; 美国国家科学基金会;
关键词：
THIN-FILM TRANSISTORS; POTASSIUM-SODIUM NIOBATE; MICROWAVE-ABSORPTION; FABRICATION; PERMITTIVITY; DENSITY;
D O I：
10.1039/c5tc04005a
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We prepared highly transparent relaxor ferroelectric ceramics based on (K0.5Na0.5)NbO3 using a pressure-less solid-state sintering method without using hot isostatic pressing and spark plasma sintering. A high energy storage density of 2.48 J cm(-3) and high transparency in the visible region (ca. 60% at 0.7 mu m) were achieved for the 0.8(K0.5Na0.5)NbO3-0.2Sr(Sc0.5Nb0.5)O-3 ceramics with submicron-sized grains (about 0.5 mu m). The energy storage density of 2.48 J cm(-3) exceeded all previous reports for lead-free bulk ceramics. These results demonstrate that the 0.8(K0.5Na0.5)NbO3-0.2Sr(Sc0.5Nb0.5)O-3 ceramics are promising lead-free transparent dielectric materials for use in transparent electronic devices. This study not only opens up a new avenue for the design of lead-free transparent ferroelectric ceramics with a high energy storage density, but also expands the applications of (K0.5Na0.5)NbO3-based ceramics into new areas beyond piezoelectric applications.
引用
收藏
页码：1795 / 1803
页数：9
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