Enhanced piezoelectric and photochromic properties of Sm3+/Sr2+ co-doped K0.52Na0.48NbO3 ceramics in combination with luminescence

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-03-20 DOI:10.1016/j.jeurceramsoc.2025.117387

J.W. Seo, S.W. Wi, Y.S. Lee, Jin-Seok Chung

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引用次数: 0

Abstract

Sm/Sr co-doped K_0.52Na_0.48NbO₃ (KNN-Sm-xSr) has been examined as an innovative multifunctional ferroelectric photochromic material that simultaneously exhibits piezoelectric, photochromic (PC), and photoluminescence (PL) properties. Sr/Sm co-doping led to an increase in the piezoelectric coefficient (d₃₃) from 80 (pure KNN) to 107 pC/N (x = 0.005), induced by introduction of the polymorphic phase boundary at room temperature. In addition, the coloration contrast significantly increases under near-ultraviolet irradiation. This PC behavior resulted in improved modulation of PL intensities, reaching up to 75 % after 16 min of 380 nm irradiation. Furthermore, the reduction in PL was repeatedly recovered by thermal treatment. These results highlight the promising prospects of KNN-Sm-xSr as a versatile material for applications requiring simultaneous control of piezoelectric, PL, and PC functionalities.

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来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.