4.7 Article

Potassium sodium niobate-based transparent ceramics with high piezoelectricity and enhanced energy storage density

期刊

JOURNAL OF ALLOYS AND COMPOUNDS
卷 953, 期 -, 页码 -

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2023.170081

关键词

Lead-free ceramics; Potassium sodium niobate; Piezoelectricity; Transparency; Energy storage

向作者/读者索取更多资源

Lead-free potassium sodium niobate (KNN)-based transparent ceramics were successfully fabricated by a conventional solid-state reaction method, showing high light transmission and excellent piezoelectric properties. By adjusting the phase structure and grain size, the ceramics maintained their good transparency and piezoelectricity. Particularly, KNLNST-based transparent ceramic with 0.07CZ modifications exhibited higher light transmittance (73.5% at 1800 nm) and exceptional piezoelectric constants (d33 = 130 pC/N), making it more efficient than reported KNN-based transparent ceramics.
Lead-free potassium sodium niobate (KNN)-based transparent ceramics are highly desirable owing to their excellent piezoelectricity, and recoverable energy storage density (Wrec) especially for optoelectronic de-vices. However, it is challenging to achieve all parameters such as efficient light transmittance and excellent piezoelectricity or energy storage performance in a single device. Herein, we report a facile fabrication of transparent ceramic composed of (1 - x)[(Na0.57K0.43)0.94Li0.06][(Nb0.94Sb0.06)0.95Ta0.05]O3-xCaZrO3 (x = 0, 0.01, 0.03, 0.05, 0.07, 0.09 and 0.10) ((1 - x)KNLNST-xCZ) via conventional solid-state reaction method. It has been found that ceramics can retain good light transmission and maintain their piezoelectric properties by adjusting the phase structure and refining the grains to a certain extent. In particular, KNLNST-based transparent ceramic with 0.07CZ modifications demonstrates a high transmittance (T = 73.5% at 1800 nm) and exceptional piezoelectric constants (d33 = 130 pC/N), which is more efficient than reported KNN-based transparent ceramics. More importantly, a significant improvement in grain size refinement is also achieved through the integration of CZ into KNLNST, which allow us to increase the breakdown strength of the ceramics while improving their light transmittance, which result in a high density of energy storage. The highly efficient energy storage performance (Wrec = 4.88 J/cm3) and the higher transparency (T = 75% at 1800 nm) at 0.91KNLNST-0.09CZ ceramic. We believe that this work will provide useful strategies for the development of KNN-based functional ceramics.(c) 2023 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据