High-contrast photochromic Eu-doped K0.5Na0.5NbO3 ceramics with prominent pellucidity

Yang Zhou; Peng Wang; Jinfeng Lin; Qiling Lu; Xiao Wu; Min Gao; Tengfei Lin; Cong Lin; Xinghua Zheng

doi:10.1039/D1DT00467K

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High-contrast photochromic Eu-doped K_0.5Na_0.5NbO₃ ceramics with prominent pellucidity†

Yang Zhou,‡^a Peng Wang,‡^a Jinfeng Lin,

^b Qiling Lu,^a Xiao Wu,

*^a Min Gao,^a Tengfei Lin,

^a Cong Lin^a and Xinghua Zheng^a

Author affiliations

* Corresponding authors

^a College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
E-mail: wuxiao@fzu.edu.cn

^b School of Materials Science and Engineering, Tongji University, Shanghai 201804, China

Abstract

The Eu-doped K_0.5Na_0.5NbO₃ pellucid ceramics were first prepared via a conventional solid-state reaction, and they exhibited light illumination-induced high-contrast photochromism of both optical transmittance and photoluminescence behaviors. Through thermal treatment, the optical performances could return to their initial states and displayed excellent reversibility. Eu³⁺ ions were selected as the luminescent activator for detecting the local environment of the K_0.5Na_0.5NbO₃ host. Meanwhile, the effects of the amount of Eu³⁺ present on phase structures, microstructures, optical transmittance and photoluminescence intensities were systematically investigated. The results suggest that Eu-doped K_0.5Na_0.5NbO₃ transparent ceramics possess multifunctionality including photochromism, photoluminescence and optical switching properties, and that they exhibit promising potential for non-destructive optical data storage application.

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Article information

DOI: https://doi.org/10.1039/D1DT00467K
Article type: Paper
Submitted: 11 Feb 2021
Accepted: 11 Mar 2021
First published: 12 Mar 2021

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Dalton Trans., 2021,50, 4914-4922

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High-contrast photochromic Eu-doped K_0.5Na_0.5NbO₃ ceramics with prominent pellucidity

Y. Zhou, P. Wang, J. Lin, Q. Lu, X. Wu, M. Gao, T. Lin, C. Lin and X. Zheng, Dalton Trans., 2021, 50, 4914 DOI: 10.1039/D1DT00467K

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Dalton Transactions