文献类型：期刊文献

英文题名：Adjusting the doping concentration of Yb3+,Er3+for multifunctional applications of dual-mode excitation-responsive Y2MgTiO6 phosphors

作者：Liu, Hao[1];Xiong, Zheng-Ye[2];Lai, Ming-Hao[3];Pan, Chun-Yang[1]

机构：[1]Guangdong Univ Technol, Sch Light Ind & Chem Engn, Guangzhou 510006, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524088, Guangdong, Peoples R China;[3]Shenzhen Univ, Coll Mechatron & Control Engn, Shenzhen 518061, Guangdong, Peoples R China

年份：2025

卷号：1037

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：SCI-EXPANDED(收录号：WOS:001537637600001)、、EI(收录号：20252818762138)、Scopus(收录号：2-s2.0-105010224273)、WOS

基金：This work was supported by the National Natural Science Foundation of China (No. 21671044) .

语种：英文

外文关键词：Y2MgTiO6; Photoluminescence; X-ray excitation luminescence; Optical thermometry

外文摘要：New efficient and multifunctional materials have become a frontier of scientific research due to their unique advantages. In this work, a Y2-x-yErxYbyMgTiO6 series of phosphors was successfully synthesized via the hightemperature solid-state method. The photoluminescence and X-ray-excited luminescence of the samples were significantly enhanced by adjusting the ion doping concentration, designing the crystal geometry of the samples and introducing additional luminescent centers. Under optical excitation, electron transfer between the thermally coupled energy levels of Er3+ at elevated temperature maximises the thermometric performance of the samples, while the insensitivity of the Er 4F9/2 and Yb 2F5/2 energy levels to temperature variations under X-ray excitation also improves their thermometric capability. This results in a dual-mode excitation fluorescence thermometry system with excellent repeatability, stability and low temperature uncertainty. Additionally, excessive doping with Er enhances the samples' radiation resistance due to strengthened electron exchange interactions within the system. This work advances the application of multifunctional phosphors in optical thermometry.