首页|Research progress,doping strategies and dielectric-ferroelectric anomalies of rare earth-based Bi0.5Na0.5TiO3 perovskites
Research progress,doping strategies and dielectric-ferroelectric anomalies of rare earth-based Bi0.5Na0.5TiO3 perovskites
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Rare earth-based functional perovskites have received significant attention due to increasing energy crisis problems and environmental pollution.Many non-toxic,lead-free materials have been investi-gated;bismuth sodium titanate(Bi0.5Na0.5TiO3)has gotten significant attention because of its unique morphological,structural,and electrical properties.Also,the emergence of bismuth sodium titanate with a high remnant polarization has revived the application of inorganic materials in electronic devices.This type of ferroelectrics is known to display new functionalities coupled with ferroic orders.In recent years,research in the field of inorganic-based ferroelectrics,mainly Bi0.5Na0.5TiO3(BNT),has been thriving toward enhanced electronic device performance.Doping rare earth elements in BNT compounds has achieved significant electrical properties.This article summarizes prominent theories associated with ferroelectric-dielectric mechanisms and provides the most recent progress in rare earth-based BNT systems.Emphasis is placed on design of principles toward tailoring the crystal structure via doping effect and oxygen vacancies,as well as domain engineering.Finally,the critical investigation is accom-panied by future perspectives,including integrating rare earth BNT perovskites for high-performance ferroelectric devices.
BNTFerroelectricDielectricCrystal structureDopingRare earth elements
Subramani Supriya
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Research Rhombus Technologies(RR Tech-Non-profit and Non-commercial),Chennai,600099,Tamilnadu,India
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