Calcium Vacancy Generated Luminescence Improvement of the Ca3Sc2Si3O12:Ce3+ Phosphor for WLED

IF 3 4区化学 Q2 CHEMISTRY, ANALYTICAL

Luminescence Pub Date : 2025-08-29 DOI:10.1002/bio.70304

Yue Guo, Yingkai Fu, Chaohui Zhang, Jiaqi Sun, Minjie Zhao, Yuanxiang Gao, Chenyu Hu, Zhenxing Cao, Xu Qian, Quan Liu

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引用次数: 0

Abstract

Phosphors with high efficiency and excellent thermal stability for solid-state lighting have kept catching researchers' attention. Herein, a series of Ca₃Sc₂Si₃O₁₂:Ce³⁺ cyan-emitting phosphors are synthesized, and calcium vacancy is introduced into the lattice to improve emission and thermal stability. Detailed structure information is studied via X-ray diffraction and X-ray photoelectron spectroscopy to obtain the effect of Ca vacancy on the lattice structure. Absorption spectra and photoluminescence spectra of the phosphors are measured to confirm the enhanced emission of Ca₃Sc₂Si₃O₁₂:Ce³⁺ phosphors via Ca vacancy engineering. Optimized phosphor Ca_2.59Ce_0.01Sc₂Si₃O₁₂ exhibits high quantum efficiency (89.4%) and maintains 84.6% of its room-temperature emission intensity at 423 K. Optimized phosphor Ca_2.59Ce_0.01Sc₂Si₃O₁₂ is mixed with orange phosphor to fabricate white light-emitting diode (WLED) with blue chip. All the information confirms the promising application prospects of this cyan-emitting phosphor in high-quality WLED.

Abstract Image

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钙空位对WLED用Ca3Sc2Si3O12:Ce3+荧光粉发光性能的改善

高效、热稳定性好的固态照明荧光粉一直是研究人员关注的焦点。本文合成了一系列Ca3Sc2Si3O12:Ce3+氰发光荧光粉，并在晶格中引入钙空位以提高发射稳定性和热稳定性。通过x射线衍射和x射线光电子能谱分析详细的结构信息，得到钙空位对晶格结构的影响。测量了荧光粉的吸收光谱和光致发光光谱，证实了钙空位工程对Ca3Sc2Si3O12:Ce3+荧光粉的增强发射。优化后的荧光粉Ca2.59Ce0.01Sc2Si3O12具有较高的量子效率（89.4%），在423 K时保持84.6%的室温发射强度。将优化后的荧光粉Ca2.59Ce0.01Sc2Si3O12与橙色荧光粉混合，制备出蓝色芯片白色发光二极管。这些都证实了该青色发光荧光粉在高质量WLED中的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Luminescence 生物-生化与分子生物学

CiteScore

5.10

自引率

13.80%

发文量

248

审稿时长

3.5 months

期刊介绍： Luminescence provides a forum for the publication of original scientific papers, short communications, technical notes and reviews on fundamental and applied aspects of all forms of luminescence, including bioluminescence, chemiluminescence, electrochemiluminescence, sonoluminescence, triboluminescence, fluorescence, time-resolved fluorescence and phosphorescence. Luminescence publishes papers on assays and analytical methods, instrumentation, mechanistic and synthetic studies, basic biology and chemistry. Luminescence also publishes details of forthcoming meetings, information on new products, and book reviews. A special feature of the Journal is surveys of the recent literature on selected topics in luminescence.