Preparation and Photostriction Properties of BiFeO3-BaTiO3 Ceramics

Under illumination by 405, 520 and 655 nm monochromatic visible light (light intensity of 30 kW/m 2 ), large photostriction (Δ L/L ) of 0.19%, 0.13% and 0.26% for 67BiFeO 3 -33BaTiO 3 (67BF-33BT) lead-free ferroelectric ceramics are obtained, respectively. By studying the ferroelectric and photoelec...

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Bibliographic Details
Published inJournal of Wuhan University of Technology. Materials science edition Vol. 39; no. 5; pp. 1079 - 1086
Main Authors Zheng, Zewei, Zhang, Liqiang, Chen, Chen, Cao, Minghe, Yi, Zhiguo, Liu, Hanxing
Format Journal Article
LanguageEnglish
Published Wuhan Wuhan University of Technology 01.10.2024
International School of Materials Science and Engineer-ing,Wuhan University of Technology,Wuhan 430070,China
Subjects
Advanced Materials
Chemistry and Materials Science
Materials Science
ferroelectric ceramics
photostrictive effect
visible light response
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Summary:Under illumination by 405, 520 and 655 nm monochromatic visible light (light intensity of 30 kW/m 2 ), large photostriction (Δ L/L ) of 0.19%, 0.13% and 0.26% for 67BiFeO 3 -33BaTiO 3 (67BF-33BT) lead-free ferroelectric ceramics are obtained, respectively. By studying the ferroelectric and photoelectric properties in conjunction with in situ Raman spectroscopy, it is found that the photostrictive effect of 67BF-33BT is not caused by the electrical strain induced by abnormal photovoltaic voltage, but related to the optical induced oxygen octahedral distortion. The 67BF-33BT lead-free ferroelectric material with excellent photostrictive response in the visible light region is expected to play an important role in the field of optical drive electromechanical devices.
ISSN:1000-2413
1993-0437
DOI:10.1007/s11595-024-2973-8