Role of Bi chemical pressure on electrical properties of BiFeO3–BaTiO3–based ceramics

Tauseef Ahmed; Salman Ali Khan; Ji Hee Bae; Muhammad Habib; Fazli Akram; Soo Yong Choi; Ali Hussain; Tae Kwon Song; Yeon Soo Sung; Myong Ho Kim; Soonil Lee

doi:10.1016/j.solidstatesciences.2021.106562

Role of Bi chemical pressure on electrical properties of BiFeO₃–BaTiO₃–based ceramics

Tauseef Ahmed
, Salman Ali Khan
, Ji Hee Bae
, Muhammad Habib
, Fazli Akram
, Soo Yong Choi
, Ali Hussain
, Tae Kwon Song
, Yeon Soo Sung^*
, Myong Ho Kim^*
, Soonil Lee^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

Effect of Bi non-stoichiometry is one of the big issues in BiFeO₃-BaTiO₃ (BF-BT) ceramics that have not been resolved clearly. Therefore, 0.65Bi_1+xFeO₃-0.35BaTiO₃ (x = 0–0.06) ceramics were synthesized by a conventional solid-state reaction at different sintering temperatures (T_S) to control the Bi non-stoichiometry, which can be varied by the sublimation and/or evaporation of Bi⁺³ ions during sintering process. The effects of Bi chemical pressure on crystalline phase, microstructure, dielectrics, and piezoelectric properties of BF-BT were evaluated. X-rays diffraction revealed a single perovskite structure with pseudo-cubic symmetry. A prominent enhancement was noticed at x = 0.05 in ferroelectric, dielectric and piezoelectric properties. Typical ferroelectric behaviors were obtained, while unipolar and bipolar strains were enhanced with increasing Bi content. The maximum piezoelectric properties were found at T_S = 1000 °C with x = 0.05, having d^∗₃₃ = 270 pm/V at 5 kV/mm with Curie Temperature (T_C) = 432 °C.

Original language	English
Article number	106562
Journal	Solid State Sciences
Volume	114
DOIs	https://doi.org/10.1016/j.solidstatesciences.2021.106562
State	Published - Apr 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Masson SAS

Keywords

Bi non-stoichiometry
BiFeO-BaTiO
Dielectric
Lead-free
Piezoelectric

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

Access to Document

10.1016/j.solidstatesciences.2021.106562

Cite this

@article{86a360a33e8c4d46a227961659264ee7,

title = "Role of Bi chemical pressure on electrical properties of BiFeO3–BaTiO3–based ceramics",

abstract = "Effect of Bi non-stoichiometry is one of the big issues in BiFeO3-BaTiO3 (BF-BT) ceramics that have not been resolved clearly. Therefore, 0.65Bi1+xFeO3-0.35BaTiO3 (x = 0–0.06) ceramics were synthesized by a conventional solid-state reaction at different sintering temperatures (TS) to control the Bi non-stoichiometry, which can be varied by the sublimation and/or evaporation of Bi+3 ions during sintering process. The effects of Bi chemical pressure on crystalline phase, microstructure, dielectrics, and piezoelectric properties of BF-BT were evaluated. X-rays diffraction revealed a single perovskite structure with pseudo-cubic symmetry. A prominent enhancement was noticed at x = 0.05 in ferroelectric, dielectric and piezoelectric properties. Typical ferroelectric behaviors were obtained, while unipolar and bipolar strains were enhanced with increasing Bi content. The maximum piezoelectric properties were found at TS = 1000 °C with x = 0.05, having d∗33 = 270 pm/V at 5 kV/mm with Curie Temperature (TC) = 432 °C.",

keywords = "Bi non-stoichiometry, BiFeO-BaTiO, Dielectric, Lead-free, Piezoelectric",

author = "Tauseef Ahmed and Khan, \{Salman Ali\} and Bae, \{Ji Hee\} and Muhammad Habib and Fazli Akram and Choi, \{Soo Yong\} and Ali Hussain and Song, \{Tae Kwon\} and Sung, \{Yeon Soo\} and Kim, \{Myong Ho\} and Soonil Lee",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Masson SAS",

year = "2021",

month = apr,

doi = "10.1016/j.solidstatesciences.2021.106562",

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volume = "114",

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T1 - Role of Bi chemical pressure on electrical properties of BiFeO3–BaTiO3–based ceramics

AU - Ahmed, Tauseef

AU - Khan, Salman Ali

AU - Bae, Ji Hee

AU - Habib, Muhammad

AU - Akram, Fazli

AU - Choi, Soo Yong

AU - Hussain, Ali

AU - Song, Tae Kwon

AU - Sung, Yeon Soo

AU - Kim, Myong Ho

AU - Lee, Soonil

PY - 2021/4

Y1 - 2021/4

N2 - Effect of Bi non-stoichiometry is one of the big issues in BiFeO3-BaTiO3 (BF-BT) ceramics that have not been resolved clearly. Therefore, 0.65Bi1+xFeO3-0.35BaTiO3 (x = 0–0.06) ceramics were synthesized by a conventional solid-state reaction at different sintering temperatures (TS) to control the Bi non-stoichiometry, which can be varied by the sublimation and/or evaporation of Bi+3 ions during sintering process. The effects of Bi chemical pressure on crystalline phase, microstructure, dielectrics, and piezoelectric properties of BF-BT were evaluated. X-rays diffraction revealed a single perovskite structure with pseudo-cubic symmetry. A prominent enhancement was noticed at x = 0.05 in ferroelectric, dielectric and piezoelectric properties. Typical ferroelectric behaviors were obtained, while unipolar and bipolar strains were enhanced with increasing Bi content. The maximum piezoelectric properties were found at TS = 1000 °C with x = 0.05, having d∗33 = 270 pm/V at 5 kV/mm with Curie Temperature (TC) = 432 °C.

AB - Effect of Bi non-stoichiometry is one of the big issues in BiFeO3-BaTiO3 (BF-BT) ceramics that have not been resolved clearly. Therefore, 0.65Bi1+xFeO3-0.35BaTiO3 (x = 0–0.06) ceramics were synthesized by a conventional solid-state reaction at different sintering temperatures (TS) to control the Bi non-stoichiometry, which can be varied by the sublimation and/or evaporation of Bi+3 ions during sintering process. The effects of Bi chemical pressure on crystalline phase, microstructure, dielectrics, and piezoelectric properties of BF-BT were evaluated. X-rays diffraction revealed a single perovskite structure with pseudo-cubic symmetry. A prominent enhancement was noticed at x = 0.05 in ferroelectric, dielectric and piezoelectric properties. Typical ferroelectric behaviors were obtained, while unipolar and bipolar strains were enhanced with increasing Bi content. The maximum piezoelectric properties were found at TS = 1000 °C with x = 0.05, having d∗33 = 270 pm/V at 5 kV/mm with Curie Temperature (TC) = 432 °C.

KW - Bi non-stoichiometry

KW - BiFeO-BaTiO

KW - Dielectric

KW - Lead-free

KW - Piezoelectric

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