文献类型：期刊文献

英文题名：Near-ultraviolet trigger Er3+activation green trifunctional material for solid-state lighting, forensic fingerprint analysis and optical temperature sensing

作者：Wei, Chao Zhang, Jie Sun, Zan Ran, Jingyu Zhang, Zuotai Su, Xiangdong

第一作者：Wei, Chao

通信作者：Ran, JY[1];Su, XD[1];Ran, JY[2]

机构：[1]Guizhou Inst Technol, Guizhou Phosphogypsum Inst, Guiyang 550003, Peoples R China;[2]Guizhou Univ, Collaborat Innovat Ctr Guizhou Prov Efficient Util, Guiyang 550025, Peoples R China;[3]Baoding Univ, Coll Automobile & Elect Engn, Baoding 071000, Peoples R China;[4]Southern Univ Sci & Technol SUSTech, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China;[5]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;corresponding author), Southern Univ Sci & Technol SUSTech, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China.|贵州理工学院;

年份：2025

卷号：690

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20251218075457);Scopus(收录号：2-s2.0-105000267196);WOS:【SCI-EXPANDED(收录号:WOS:001451813700001)】；

基金：This work was supported by Guizhou Provincial Science and Technology Projects [Qiankehe Basic-[2024] Youth 362]. In addition, we would like to thank Ms. Hou Junyi for her guidance and support in thesis writing and grammatical revision.

语种：英文

外文关键词：Phosphor; LED; Temperature sensing; Fingerprints

摘要：The Er3+ doped Sr9La2(WO6)4 phosphor was prepared via the solid-state reaction method. Through a series of tests, this study validated its dual functionality in solid-state lighting and non-contact optical temperature sensing. Under excitation at 381 nm, the material prepared emitted intense green light. When integrated into LED devices, the LED produced bright white light with a color rendering index (CRI) near 94, a moderate color temperature, and chromaticity coordinates that fell within the white light region. Based on the fluorescence intensity ratio (FIR) principle, the phosphor exhibited exceptional sensitivity in the temperature range of 298-523 K. As the temperature increased, the maximum absolute sensitivity reached 4.6222 % K 1 at 583 K, and the maximum relative sensitivity of 2.5385 % K 1 was observed at 348 K, outperforming most reported temperature sensing materials of similar type. Furthermore, the fluorescent LFP images prepared with Sr9La2(WO6)4:0.09Er3+ phosphor have excellent visualization, with high resolution and contrast, and are able to identify 1-3 level details well. The results show that Sr9La2(WO6)4: xEr3+ phosphors have potential applications not only in w-LEDs and visualization of potential fingerprints, but also in optical sensors for environmental monitoring and temperature sensing.