The defect related energy-storage properties of A-site off-stoichiometry ferroelectric ceramic

The Ba 0.985 La 0.015 Ti 0.9 Sn 0.1 O 3 ceramic has been prepared by a cost-effective solid-state reaction method. Preliminary room-temperature X-ray diffraction indicates that the crystallization of the ceramic is good. Field Emission Scanning Electron Microscopy was used to study the microstructur...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2021-05, Vol.127 (5), Article 337
Main Authors: Meng, Ke, Li, Wenhua, Tang, Xingui, Liu, Qiuxiang, Jiang, Yanping
Format: Article
Language:English
Subjects:
Activation energy
Applied physics
Ceramics
Characterization and Evaluation of Materials
Condensed Matter Physics
Crystallization
Dielectric properties
Electric fields
Emission analysis
Energy
Energy storage
Ferroelectricity
Field emission microscopy
High temperature
Machines
Manufacturing
Materials science
Nanotechnology
Optical and Electronic Materials
Photoelectrons
Physics
Physics and Astronomy
Processes
Relaxors
Room temperature
Spectrum analysis
Stoichiometry
Surfaces and Interfaces
Thin Films
Vacancies
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Ba 0.985 La 0.015 Ti 0.9 Sn 0.1 O 3 ceramic has been prepared by a cost-effective solid-state reaction method. Preliminary room-temperature X-ray diffraction indicates that the crystallization of the ceramic is good. Field Emission Scanning Electron Microscopy was used to study the microstructure of ceramic. X-ray photoelectron spectroscopy was used to characterize the oxygen vacancies. Dielectric properties and impedance spectroscopy reflected the characteristic of relaxor-type behavior. Modified Curie–Weiss law was used to evaluate the relaxor behavior. The fitting result of the relaxation parameter λ  = 1.4, which verifies their relaxor property. Jonscher’s power law was used to analyze the behavior of alternating current conductivity. The Arrhenius law was used to calculate the relaxor activation-energy ( E a ) and the conduction activation-energy ( E c ). The fitting results show that the E a and E c are 1.1 and 1. 13 eV, respectively. These values demonstrate that the high-temperature relaxor behavior was attributed to the double ionized oxygen vacancies. The electric field versus polarization curve reflects the energy-storage property of it. The maximum recoverable energy-storage density is 2.14 J/cm 3 , and the energy-storage efficiency is 67.65%.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-021-04489-7