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Large Piezoelectricity in Ternary Lead-Free Single Crystals
Wang, Yaojin; Luo, Chengtao; Wang, Shuhao; Chen, Chao; Yuan, Guoliang; Luo, Haosu; Viehland, Dwight
2019-12-31
Source PublicationADVANCED ELECTRONIC MATERIALS
ISSN2199-160X
SubtypeArticle; Early Access
AbstractSince industry-standard piezoelectric materials, such as lead zirconium titanate ceramics, contain toxic lead, a rapid surge in research on lead-free piezoelectric materials is occurring due to concerns over environmental safety and human health. A ternary lead-free (Na0.5Bi0.5)TiO3-BaTiO3-(K0.5Na0.5)NbO3 single crystal with a large field induced strain of approximate to 0.9% and a giant piezoelectric coefficient d(33) of 840 pC N-1 at room temperature is reported. It is revealed that the electric-field-induced phase transition and phase boundary between energetically comparable polar states (i.e., R3c and P4mm) play an important role in achieving the ultrahigh piezoelectricity. Transmission electron microscopy and scan probe microscopy are employed to verify the weak-polar ferroelectric R3c and P4bm structure in the ground state. These unprecedentedly high piezoelectric properties make lead-free ternary single crystals a leading candidate for piezoelectric-based device applications, especially toward the era of smart homes and implantable medical devices.
Keywordferroelectric single crystals lead-free piezoelectric materials NBT-based phase coexistence piezoelectrics
DOI10.1002/aelm.201900949
WOS KeywordPOLARIZATION ; CERAMICS ; ROTATION ; STRAINS
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
PublisherWILEY
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27488
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wang, Yaojin,Luo, Chengtao,Wang, Shuhao,et al. Large Piezoelectricity in Ternary Lead-Free Single Crystals[J]. ADVANCED ELECTRONIC MATERIALS,2019.
APA Wang, Yaojin.,Luo, Chengtao.,Wang, Shuhao.,Chen, Chao.,Yuan, Guoliang.,...&Viehland, Dwight.(2019).Large Piezoelectricity in Ternary Lead-Free Single Crystals.ADVANCED ELECTRONIC MATERIALS.
MLA Wang, Yaojin,et al."Large Piezoelectricity in Ternary Lead-Free Single Crystals".ADVANCED ELECTRONIC MATERIALS (2019).
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