Enhanced energy storage properties of lead-free ferroelectric (1-x) Na0.5Bi0.5TiO3-xSrTiO3 polycrystal thin film

被引：0
作者：
Duan, Mengyun [1 ]
Yuan, Qibin [1 ]
Liu, Wenlong [1 ]
Zhang, Zhanhang [1 ]
Wei, Jiahua [1 ]
机构：
[1] Shaanxi Univ Sci & Technol, Sch Elect Informat & Artificial Intelligence, Xian 710021, Peoples R China
来源：
MATERIALS LETTERS | 2025年 / 383卷
关键词：
Sol-gel; Relaxor ferroelectrics; Energy storage properties; Bi0.5; Na0.5; TiO3; NANOSTRUCTURES; PERFORMANCE;
D O I：
10.1016/j.matlet.2025.137972
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The limited energy storage performance of dielectric capacitors constrains their utilization in the realm of pulsed power system. In this contribution, the (1-x)Bi0.5Na0.5TiO3-xSrTiO3 (BNT-xST) solid-solution thin films were prepared on FTO glass substrates using a facile sol-gel method to address this issue. The effects of composition on phase structure, microstructure, dielectric properties, and energy storage properties were systematically investigated by the means of experimental characterizations and theoretical simulation. Ultimately, the impressive energy storage density (Wrec) of 47.85 J/cm3 can be achieved in optimized composition (x = 0.25) accompanied by energy efficiency (eta) of 66.02 %. This work highlights the great potential of BNT based energy storage films prepared by sol-gel, promoting electronic devices toward more efficient and low-cost solutions.
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页数：4
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