High energy storage performance in lead-free BiFeO3-BaTiO3 ferroelectric thin film fabricated by pulsed laser deposition
Source abstract
Abstract
In this work, the 0.68BiFeO3-0.32BaTiO3 (BFBT) ferroelectric thin film was fabricated with high maximum polarization for energy storage applications. BFBT thin film with pure perovskite phase was deposited on Pt/Ti/SiO2/Si substrates at 600°C by Pulsed Laser Deposition (PLD) method. We measured the ferroelectric hysteresis, dielectric properties and the fatigue performance of the BFBT thin film with thickness of about 200 nm. It was found that the film has a high maximum field-induced polarization value of 86 μC/cm2. Under an applied low electric field of 900 kV/cm, the recoverable energy density (Ure) could reach up to 19 J/cm3, and the energy efficiency (η) is around 51% at room temperature. Furthermore, the film shows outstanding fatigue endurance even after 1×107 cycles. All results suggest that lead-free BFBT ferroelectric thin film is very promising energy storage materials.
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Multiferroics and related materials · Dielectric materials and actuators
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Optoelectronic Material and Device, Department of Physics, Shanghai Normal University 1 , Shanghai 200234, China
Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences 2 , Shanghai 200050, China
Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education School of Materials Science and Engineering, Tongji University 3 , Shanghai 201804, China
Funding
The National Natural Science Foundation of China · The Science and Teachnology Commission of Shanghai Municipality · The Youth Innovation Promotion Association, Chinese Academy of Sciences
References (36)
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