Author:
Hu Guangliang,Shen Yinchang,Fan Qiaolan,Zhao Wanli,Liu Tongyu,Ma Chunrui,Jia Chun-Lin,Liu Ming
Abstract
The leakage behavior of ferroelectric film has an important effect on energy storage characteristics. Understanding and controlling the leakage mechanism of ferroelectric film at different temperatures can effectively improve its wide-temperature storage performance. Here, the structures of a 1 mol% SiO2-doped BaZr0.35Ti0.65O3 (BZTS) layer sandwiched between two undoped BaZr0.35Ti0.65O3 (BZT35) layers was demonstrated, and the leakage mechanism was analyzed compared with BZT35 and BZTS single-layer film. It was found that interface-limited conduction of Schottky (S) emission and the Fowler-Nordheim (F-N) tunneling existing in BZT35 and BZTS films under high temperature and a high electric field are the main source of the increase of leakage current and the decrease of energy storage efficiency at high temperature. Only an ohmic conductive mechanism exists in the whole temperature range of BZT35/BZTS/BZT35(1:1:1) sandwich structure films, indicating that sandwich multilayer films can effectively simulate the occurrence of interface-limited conductive mechanisms and mention the energy storage characteristics under high temperature.
Funder
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Subject
General Materials Science
Reference26 articles.
1. Manipulating leakage behavior via thickness in epitaxial BaZr0.35Ti0.65O3 thin film capacitors;Fan;Appl. Phys. Lett.,2020
2. High-performance BaZr0.35Ti0.65O3 thin film capacitors with ultrahigh energy storage density and excellent thermal stability;Liang;J. Mater. Chem. A,2018
3. Ultrahigh energy-storage performance in lead-free BZT thin-films by tuning relaxor behavior;Nguyen;Mater. Res. Bull.,2021
4. Large Energy Density, Excellent Thermal Stability, and High Cycling Endurance of Lead-Free BaZr0.2Ti0.8O3 Film Capacitors;Sun;Acs Appl. Mater. Inter.,2017
5. Binhayeeniyi, N., Sukwisute, P., Nawae, S., and Muensit, N. (2020). Energy Conversion Capacity of Barium Zirconate Titanate. Materials, 13.
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