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Research progress on the design and regulation of Eu2+/Ce3+-activated anti-/zero thermal quenching phosphors
Shujuan Zhao1, Yue Han1, Shixun Lian1
1Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China. chemzhangjl@hunnu.edu.cn.
Abstract:
Luminescent materials have played a vital role in human society, with phosphor-converted light-emitting diodes (pc-LEDs) representing the cutting-edge in lighting solutions. As societal demands for improved material quality continue to rise, the quest for materials with enhanced performance has become paramount. Eu2+/Ce3+-activated inorganic luminescent materials have garnered significant attention due to their high luminescence efficiency and tunable properties. Recent research has focused on developing Eu2+/Ce3+-activated inorganic luminescent materials with anti-/zero thermal quenching behavior, leveraging the benefits of host structures and activator ions. To facilitate their commercial viability, a comprehensive understanding of their properties, mechanisms, and current status is essential. This study delves into the luminescence mechanisms of Eu2+/Ce3+ activator ions, provides a detailed analysis of the typical thermal behaviors of Eu2+/Ce3+-activated inorganic phosphors, outlines strategies for enhancing thermal stability from both intrinsic and extrinsic perspectives, and categorizes the reported instances of anti-/zero thermal quenching in Eu2+/Ce3+-activated phosphors. Lastly, drawing on the present landscape, this paper offers insights into the future development and prospects of similar phosphors, aiming to serve as a valuable reference for the advancement of Eu2+/Ce3+-activated inorganic luminescent materials.
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