Tailoring the chemical heterogeneity of Mn-modified 0.75BiFeO3-0.25BaTiO3 ceramics for piezoelectric sensor applications

Chen, Jianguo; Tong, Binbin; Lin, Jianyin; Gao, Xiaoyi; Cheng, Jinrong; Zhang, Shujun

doi:10.1016/j.jeurceramsoc.2022.03.052

Cited by 24 publications

(5 citation statements)

References 36 publications

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“…As can be seen, for the sample with PO 2 = 8 Pa, the reflections of both (−103) and (013) are aligned with STO, indicating that the film is completely commensurate with the STO substrate. Thus, it can be concluded that the 8 Pa film has a tetragonal structure (T-type) with lattice constants a = 3.905 Å and c = 4.260 Å. , The a -axis lattice parameter of the BF–BT ceramics is generally in the range of 3.980–4.020 Å, that is, the film prepared under PO 2 of 8 Pa is accompanied by a huge in-plane compressive stress ∼2.4%. − By contrast, both the (−103) and (013) reciprocal spots of the BF–BT film under PO 2 of 4 Pa show different in-plane Q values with the STO substrate, indicating a relaxed state. According to the lattice constants ( a = 3.…”

Section: Resultsmentioning

confidence: 99%

Ultrahigh Ferroelectric and Piezoelectric Properties in BiFeO₃–BaTiO₃ Epitaxial Films Near Morphotropic Phase Boundary

Liu

Lao

et al. 2022

ACS Appl. Mater. Interfaces

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Ferroelectric solid solutions with composition near the morphotropic phase boundary (MPB) have gained extensive attention recently due to their excellent ferroelectric and piezoelectric properties. Here, we have demonstrated a strategy to realize the controllable preparation of BiFeO 3 −BaTiO 3 (BF−BT) epitaxial films near the MPB. A series of high-quality BF−BT films were fabricated by pulsed laser deposition via adjusting oxygen partial pressure (PO 2 ) using a BF−BT ceramic target. A continuous transition from rhombohedral to tetragonal phase was observed upon increasing PO 2 . Particularly, the film with a pure tetragonal phase exhibited a large remnant polarization of ∼90.6 μC/cm 2 , while excellent piezoelectric performance with an ultrahigh strain (∼0.48%) was obtained in the film with coexisting rhombohedral and tetragonal phases. The excellent ferroelectric and piezoelectric properties endow the BF−BT system near the MPB with great application prospects in lead-free electronic devices.

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Section: Resultsmentioning

confidence: 99%

Ultrahigh Ferroelectric and Piezoelectric Properties in BiFeO₃–BaTiO₃ Epitaxial Films Near Morphotropic Phase Boundary

Liu

Lao

et al. 2022

ACS Appl. Mater. Interfaces

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“…A lead-free piezoceramic with a colossal and temperature-independent piezoelectric charge coefficient ( d 33 ) as well as ultrahigh depolarization temperature ( T d ) has been deemed as one of the optimal functional materials, because it can better match application markets ranging from the aerospace to the auto industry. − As a rule of thumb, these lead-free piezoceramics with a morphotropic phase boundary , (MPB) and polymorphic phase boundary − (PPB) as well as multiphase coexistence − had excellent piezoelectric response but suffered from low T d , which was generally below 100 °C or even close to room temperature. Therefore, this so-called d 33 – T d trade-off imposes great restrictions on high-temperature application of functional materials.…”

Section: Introductionmentioning

confidence: 99%

Realizing an Ultrahigh Depolarization Temperature near the Curie Point and Large d₃₃ with Superior Temperature Stability in Lead-Free Ceramics via a Sandwich Structure Design

Zhou

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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An imminent challenge of lead-free Bi 0.5 Na 0.5 TiO 3based (BNT) piezoceramics is that the giant piezoelectric constant (d 33 ) caused by the morphotropic phase boundary is incompatible with a high depolarization temperature (T d ) and ultralow temperature coefficient (T tc ) of the real-time d 33 , which severely hinders their industrial application in the field of elevated temperatures. Herein, a sandwich-structured 0.94Bi 0.5 Na 0.5 TiO 3 − 0 . 0 6 B a T i O 3 / 0 . 8 9 B i 0 . 5 N a 0 . 5 T i O 3 − 0 . 1 1 B a T i O 3 / 0.94Bi 0.5 Na 0.5 TiO 3 −0.06BaTiO 3 (SWS-6/11/6BT-y, where y refers to the weight fraction of the BNT-11BT solid solution) ceramic composite is engineered for mitigating the conflict between d 33 , T d and T tc . Following this strategy, ultrahigh T d near the Curie point (225 °C, close to that of the BNT-11BT layer) and relatively large d 33 (130 pC/N, close to that of the BNT-6BT layer) are simultaneously realized in a SWS-6/11/6BT-40%-Q ceramic composite. More importantly, the ultralow T tc (0.07%) of real-time d 33 is also achieved in this work. The structural heterogeneity yields the high piezoresponse, and the built-in field resulting from layer-type ceramic composites provides the driving force to promote the diffused ferroelectric−relaxor phase transition and the resultant ferroelectric order with high T d . The above synergistic contributions realize the remission of the d 33 −T d −T tc conflict in a sandwich-structural SWS-6/11/6BT-40% ceramic composite. Thus, our work provided a path for designing the BNT-based piezoceramics with potential for industrial applications.

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“…Advanced ceramics serve as "bricks" for modern electronics, powering devices such smartphones, computers, wearable equipment, electrical vehicles, and telecommunications infrastructure. Piezoelectric ceramics find use in sensors [1,2], actuators [3,4], and ultrasound technology [5][6][7], while dielectric ceramics are crucial for capacitors [8,9] and resonators [10][11][12] in communication systems. Ceramics' ability to withstand extreme temperatures and harsh conditions makes them ideal for aerospace [13,14] and defense [15,16] applications.…”

Section: Introductionmentioning

confidence: 99%

Materials Development and Potential Applications of Ceramics: New Opportunities and Challenges

Yan,

Gao,

Zhang

2023

Applied Sciences

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Tailoring the chemical heterogeneity of Mn-modified 0.75BiFeO3-0.25BaTiO3 ceramics for piezoelectric sensor applications

Cited by 24 publications

References 36 publications

Ultrahigh Ferroelectric and Piezoelectric Properties in BiFeO₃–BaTiO₃ Epitaxial Films Near Morphotropic Phase Boundary

Ultrahigh Ferroelectric and Piezoelectric Properties in BiFeO₃–BaTiO₃ Epitaxial Films Near Morphotropic Phase Boundary

Realizing an Ultrahigh Depolarization Temperature near the Curie Point and Large d₃₃ with Superior Temperature Stability in Lead-Free Ceramics via a Sandwich Structure Design

Materials Development and Potential Applications of Ceramics: New Opportunities and Challenges

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Tailoring the chemical heterogeneity of Mn-modified 0.75BiFeO3-0.25BaTiO3 ceramics for piezoelectric sensor applications

Cited by 24 publications

References 36 publications

Ultrahigh Ferroelectric and Piezoelectric Properties in BiFeO3–BaTiO3 Epitaxial Films Near Morphotropic Phase Boundary

Ultrahigh Ferroelectric and Piezoelectric Properties in BiFeO3–BaTiO3 Epitaxial Films Near Morphotropic Phase Boundary

Realizing an Ultrahigh Depolarization Temperature near the Curie Point and Large d33 with Superior Temperature Stability in Lead-Free Ceramics via a Sandwich Structure Design

Materials Development and Potential Applications of Ceramics: New Opportunities and Challenges

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Product

Resources

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Ultrahigh Ferroelectric and Piezoelectric Properties in BiFeO₃–BaTiO₃ Epitaxial Films Near Morphotropic Phase Boundary

Ultrahigh Ferroelectric and Piezoelectric Properties in BiFeO₃–BaTiO₃ Epitaxial Films Near Morphotropic Phase Boundary

Realizing an Ultrahigh Depolarization Temperature near the Curie Point and Large d₃₃ with Superior Temperature Stability in Lead-Free Ceramics via a Sandwich Structure Design