面向紫光激发LED的Eu2+/Ce3+掺杂荧光粉数据库

doi:10.15541/jim20250116

摘要/Abstract

摘要： 商用荧光转换白光LED(pc-WLEDs)激发源为蓝光LED,这一方案存在两大固有缺陷：蓝光危害和低显色指数。针对上述技术瓶颈,学界提出了以400~420 nm波段紫光LED作为激发源的方案。然而,能够被紫光高效激发的荧光粉目前仍处于开发阶段。为探索新型紫光激发荧光粉,本研究基于大型语言模型构建了一个Eu²⁺和Ce³⁺掺杂荧光粉的数据库。通过系统分析9,551篇研究论文,本课题组提取并验证了822组荧光粉数据,涵盖了元素组成、晶体结构及激发/发射波长等关键参数。研究结果表明：相比于Ce³⁺掺杂体系,Eu²⁺掺杂荧光粉在紫光激发和红光发射上更具优势,特别是氮化物和硫化物基质中的Eu²⁺掺杂体系,在紫光激发上更有潜力。该数据库的建立为后续利用人工智能开发新型pc-WLEDs荧光粉提供了重要的数据支持。

关键词: 荧光粉, 紫光LED, 大语言模型, 数据库

Abstract: Commercial phosphor-converted white LEDs (pc-WLEDs) face two inherent limitations, namely, blue light hazard and low color rendering index, due to the use of blue LEDs as excitation source. To address these challenges, violet LEDs are proposed as an alternative solution. Currently, phosphors that can be efficiently excited by violet light (with wavelength from 400 to 420 nm) remain under development. In this study, we utilize large language models to construct a comprehensive database of Eu²⁺ and Ce³⁺ doped phosphors for discovering novel violet-excited phosphors. A total of 822 phosphor data entries, including elemental compositions, crystal structures, and excitation/emission wavelengths, are extracted and validated from 9,551 research papers. Compared with Ce³⁺ doped phosphors, the Eu²⁺ are in general more suited for violet-excited phosphors, as well as red-emitting phosphors. In particular, Eu²⁺ doped nitrides and sulfides are worth of exploration for violet-excited phosphors. This database is expected to be useful in future development of phosphors for pc-WLEDs based on artificial intelligence methods.

Key words: phosphor, violet LED, large language model, database

中图分类号:

TB34

周子淳, 张翔, 明辰, 孙宜阳. 面向紫光激发LED的Eu²⁺/Ce³⁺掺杂荧光粉数据库[J]. 无机材料学报, DOI: 10.15541/jim20250116.

ZHOU Zichun, ZHANG Xiang, MING Chen, SUN Yiyang. Database of Eu²⁺ and Ce³⁺ Doped Phosphors for Development of Violet-light Excited White LEDs[J]. Journal of Inorganic Materials, DOI: 10.15541/jim20250116.

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面向紫光激发LED的Eu²⁺/Ce³⁺掺杂荧光粉数据库

Database of Eu²⁺ and Ce³⁺ Doped Phosphors for Development of Violet-light Excited White LEDs

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