Near-Ultraviolet-Induced Narrow-Band Emission Phosphors: Eu3+-Activated YCa4O(BO3)3 for Backlight-Display and White Light-Emitting Diodes

IF 4.7 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2025-08-07 DOI:10.1021/acsaelm.5c00853

Jina Ding*, Zhuo Tang, Huan Dong, Lanxiu Xiao and Jingyi Liu,

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Abstract

Developing red emission materials with high efficiency, good thermal stability, and high color purity remains a challenge for phosphor-converted light-emitting diodes (LEDs) and backlight displays. Herein, Eu³⁺-doped YCa₄O(BO₃)₃ (YCOB) phosphors with narrow-band red light emission were designed to meet simultaneously the above targets. All samples have strong red emission with high color purity under near-ultraviolet (NUV) excitation. The temperature-related emission spectra showed that the synthesized phosphors presented great thermal-emission stability with an activated energy of 1.26 eV. Meanwhile, YCOB:15%Eu³⁺ had a high internal quantum yield (about 69.2%). The electric dipole–quadrupole interaction results in concentration quenching. The fabricated phosphor-converted LED emits warm white light with a high color rendering index (92.17) and a low correlated color temperature (4834 K), suggesting that the Eu³⁺-doped YCOB phosphors are promising candidates for white LEDs. This study provides new ideas for researchers to identify undiscovered high-efficiency phosphors by expanding the application range of nonlinear laser materials.

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近紫外诱导窄带发射荧光粉：Eu3+活化yca40 (BO3)3用于背光显示和白光发光二极管

开发效率高、热稳定性好、色纯度高的红色发射材料，是磷光转换发光二极管（led）和背光显示器面临的挑战。本文设计了Eu3+掺杂yca40 (BO3)3 （YCOB）窄带红光发光荧光粉，以同时满足上述目标。所有样品在近紫外（NUV）激发下具有强红色发射，色纯度高。温度相关发射光谱表明，合成的荧光粉具有良好的热发射稳定性，激活能为1.26 eV。同时，YCOB:15%Eu3+具有较高的内量子产率（约69.2%）。电偶极-四极相互作用导致浓度猝灭。制备的磷光转换LED具有高显色指数（92.17）和低相关色温（4834 K）的暖白光，表明Eu3+掺杂的YCOB荧光粉是白光LED的理想候选材料。该研究通过扩大非线性激光材料的应用范围，为研究人员识别未被发现的高效荧光粉提供了新的思路。

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来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico