文献类型：期刊文献

英文题名：Toward versatile applications of a single-component Sr9La2(WO6)4: Sm3+ red phosphor: Lighting, plant growth and latent fingerprint visualization

作者：Wei, Chao Zhang, Jie Ran, Jingyu

第一作者：Wei, Chao

通信作者：Ran, JY[1]

机构：[1]Guizhou Inst Technol, Guizhou Phosphogypsum Inst, Guiyang 550025, Peoples R China;[2]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550025, Peoples R China;[3]Guizhou Prov Higher Educ Inst, Key Lab Chem Admixture Sci & Technol, Guiyang 550003, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Guizhou Phosphogypsum Inst, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2026

卷号：52

期号：4

起止页码：5116-5125

外文期刊名：CERAMICS INTERNATIONAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001678192100001)】；

基金：This work was supported by Guizhou Provincial Basic Research Program (Natural Science) [QKHJC-[2024] Youth 362] , the high-level talent research start-up funding project of Guizhou Institute of Technology (No.2023GCC055) . In addition, we would like to thank Ms. Hou Junyi for her support in grammar revision, and Dr. Jiawei Qiang from Beijing Normal University for his help in theoretical calculation.

语种：英文

外文关键词：Phosphor; Luminescent properties; Plant growth; Latent fingerprint visualization; Sr9La2(WO6)(4): Sm3+

摘要：In this study, a novel Sm3+-activated hexagonal tungstate phosphor Sr9La2(WO6)(4): Sm3+ (SLW: Sm3+) was synthesized via a solid-state reaction method. Compared to traditional silicate- and aluminate-based phosphors, its unique crystal structure provides a more favorable coordination environment for Sm3+ ions. XRD and XPS characterizations confirmed that the as-prepared samples are of pure phase, where Sm3+ ions successfully substitute for La3+ sites and exist stably in the +3 oxidation state. Upon 408 nm excitation, the phosphor exhibits strong red light at 649 nm, with an optimal Sm3+ doping concentration (x) of 0.1. The concentration quenching is attributed to the energy transfer between nearest-neighbor or next-nearest-neighbor Sm3+ ions. Notably, the phosphor exhibits excellent thermal stability, featuring a high activation energy (0.557 eV) and a quantum efficiency of 41.45 %, outperforming most previously reported analogous materials. The packaged white LED with a correlated color temperature (5501 K) and a color rendering index (93.71) is suitable for high-color-rendering lighting applications. Furthermore, the red LED supplementary lighting device based on this phosphor can significantly promote the growth of pea seedlings, resulting in greener foliage and more robust growth. Under ultraviolet light, the phosphor enables clear visualization of 1st-3rd level fingerprint structures with excellent imaging quality. This work realizes the integration of multiple functions, including high-color-rendering lighting, agricultural supplementary illumination, and latent fingerprint visualization, breaking the single-application limitation of traditional Sm3+-doped phosphors. It provides a new direction for the development and application of multifunctional phosphors.