Lead-Free BiFeO[sub.3]-Based Piezoelectrics: A Review of Controversial Issues and Current Research State

Lead-free electroceramics represent an emerging area of research that has the potential to enable new green advances in electronics. Research has mainly focused on the development of new piezoelectric materials for replacing lead containing oxides exhibiting superior electromechanical behavior. Lead...

Full description

Saved in:
Bibliographic Details
Published inMaterials Vol. 15; no. 13
Main Authors Kim, Sangwook, Nam, Hyunwook, Calisir, Ilkan
Format Journal Article
LanguageEnglish
Published MDPI AG 01.06.2022
Subjects
Bismuth
Composition
Electronic ceramics
Piezoelectric materials
Japan
Online AccessGet full text

Cover

More Information
Summary:Lead-free electroceramics represent an emerging area of research that has the potential to enable new green advances in electronics. Research has mainly focused on the development of new piezoelectric materials for replacing lead containing oxides exhibiting superior electromechanical behavior. Lead-free BiFeO[sub.3]-based materials are not only the promising candidates to replace lead-based materials but also show intriguing properties which may inspire innovative material design for the next generation of lead-free piezoceramics. This review aims to highlight the current state of research and overlooked aspects in lead-free BiFeO[sub.3]-based ceramics, which could be insightful in elucidating certain controversial issues. Current strategies to reduce high conductivity, influence of chemical heterogeneity on both functional properties and crystal structure, effective heat treatment procedures, and the role of pseudo-cubic structures on the enhancement of piezoelectric properties are subjects of highlighted within this review as they have a significant impact on the quality of BiFeO[sub.3]-based lead-free piezoelectrics (but are often disregarded).
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15134388