Engineering a Reversible Primary Battery Structure in SrZnOS:Eu²⁺,Dy³⁺ for Multi-Modal Red Luminescence.

Authors

Xiangyu Zhang, Yuanyuan Hu, Chunlong Xu, Lin Cheng, Dangli Gao

Published in

ACS applied materials & interfaces. Jul 14, 2026. Epub Jul 14, 2026.

Abstract

Rational design of Eu²⁺-activated red phosphors under visible light excitation remains a critical challenge in various fields such as photonics, optoelectronics, and white-light-emitting diodes. Herein, we engineer high density traps with a double metastable state in the SrZnOS matrix by constructing the reversible infinitesimal photoelectrochemical layered micro-unit battery structure via co-doping Eu²⁺ and Dy³⁺ ions for achieving robust red luminescence. The resulting SrZnOS:Eu²⁺,Dy³⁺ phosphor exhibits intense red photoluminescence at 620 nm under 468 nm excitation, matching the emission intensity of commercial SrAl₂O₄:Eu²⁺,Dy³⁺ under UV irradiation. Notably, this material exhibits multi-modal luminescence, encompassing red persistent luminescence along with tunable photo/thermo/mechano-stimulated luminescence. These properties make SrZnOS:Eu²⁺,Dy³⁺ highly promising for applications in secure information storage and advanced displays. Our work establishes a design principle for manipulating multi-mode luminescence in oxide hosts through photoelectrochemical cell engineering, opening avenues for next-generation functional materials.

PMID:
42447198
Bibliographic data and abstract were imported from PubMed on 15 Jul 2026.

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