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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, Advance Article
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, Advance Article , DOI: 10.1039/C9TC06824D

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