Electro-mechano-optical properties of the Er3+ modified Bi0.5Na0.4K0.1TiO3 versatile ceramics

A series of Bi0.5-xErxNa0.4K0.1TiO3 (BNKT-xEr) ceramics were designed and fabricated, the dopant effects on dielectric, piezoelectric and photoluminescence properties were studied. The results show that the piezoelectric property of BNKT can be enhanced by a trace amount of Er dopant, which is also...

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Bibliographic Details
Published in:Journal of the European Ceramic Society 2021-04, Vol.41 (4), p.2488-2496
Main Authors: Dong, Guangzhi, Fan, Huiqing, Jia, Yuxin, Li, Ming, Zhang, Shujun
Format: Article
Language:English
Subjects:
Bi0.5Na0.4K0.1TiO3
Dielectric
Electrostrain
Photoluminescence
Piezoelectric
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Summary:A series of Bi0.5-xErxNa0.4K0.1TiO3 (BNKT-xEr) ceramics were designed and fabricated, the dopant effects on dielectric, piezoelectric and photoluminescence properties were studied. The results show that the piezoelectric property of BNKT can be enhanced by a trace amount of Er dopant, which is also reflected in the large linear electrostrain (Suni = 0.29%, under 55 kV/cm) achieved in BNKT-0.0025 Er. On the other hand, higher Er content can produce excellent dielectric temperature stability, with △ԑ/ԑ150 °C < ±15% over temperature range of 90∼510 °C. Meanwhile, all BNKT-xEr ceramics exhibit good photoluminescence properties, which may open new applications of these multifunctional ceramics.
ISSN:0955-2219
1873-619X
DOI:10.1016/j.jeurceramsoc.2020.12.018