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Issue 17, 2020
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Boosting the photostriction properties of (K0.5Na0.5)NbO3-based ceramics modulated by introducing Ba(Ni0.5Nb0.5)O3−δ

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Abstract

Photostrictive materials have been widely studied due to their extensive applications in the wireless remote control technology. Compared with other materials that have been studied, (K0.5Na0.5)NbO3(KNN)-based ceramics have a more environment-friendly and stable application prospect. Hence, a series of (1 − x)(K0.5Na0.5)NbO3xBa(Ni0.5Nb0.5)O3−δ (x = 0, 0.02, 0.04, and 0.06) (KNN–BNNO) ceramics have been prepared via a solid-state reaction method to obtain excellent photostriction properties. The appropriate addition of Ba(Ni0.5Nb0.5)O3−δ not only enhances the photostriction properties but also improves the dielectric properties. Besides, a considerable photostrictive coefficient (1.34 × 10−9 m2 W−1) and shorter response time of the maximum photo-induced strain (270 s) have been obtained for the 0.98(K0.5Na0.5)NbO3–0.02Ba(Ni0.5Nb0.5)O3−δ ceramics. A large blue shift appears as the illumination intensity increases from 0.7 W cm−2 to 70 W cm−2 in the Raman spectrum of the 0.98(K0.5Na0.5)NbO3–0.02Ba(Ni0.5Nb0.5)O3−δ ceramics, which indicates that a compressive strain is produced in a specific direction.

Graphical abstract: Boosting the photostriction properties of (K0.5Na0.5)NbO3-based ceramics modulated by introducing Ba(Ni0.5Nb0.5)O3−δ

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Article information


Submitted
13 Dec 2019
Accepted
18 Mar 2020
First published
19 Mar 2020

J. Mater. Chem. C, 2020,8, 5904-5912
Article type
Paper

Boosting the photostriction properties of (K0.5Na0.5)NbO3-based ceramics modulated by introducing Ba(Ni0.5Nb0.5)O3−δ

H. Fu, Y. Wang, H. Guo, Y. Lu, N. Wang, H. Zheng and F. Chen, J. Mater. Chem. C, 2020, 8, 5904
DOI: 10.1039/C9TC06824D

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