Jin Ye, Li Kun, Chen Hongtao, Fang Fei, Li Yuyan, Lin Huayan, Xiong Yanbin, Feng Guoqing, Wang Xiao-Jun, Ma Li
College of Science, Chongqing University of Technology, 69 Hongguang Street, Chongqing 400054, China.
College of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China.
Dalton Trans. 2023 Jul 25;52(29):10005-10012. doi: 10.1039/d3dt01303k.
Oxides are physically and chemically stable. Non-contact thermometer-Yb-Er ions co-doped solid solution (YIn)O, is prepared by the regular solid method. The structural results obtained by XRD indicate that a pure phase solid solution (YIn)O has been obtained. The solid solution (YIn)O has a similar crystal structure, especially YO and InO with the same space group (3̄). Green emission from 500 to 600 nm is due to Er 4f-4f transitions: S → I at 567 nm and H → I at 528 nm. Red emissions from 630 to 720 nm are attributed to Er: F → I. UC luminescence changes greatly with laser diode power and Er and Yb content. Furthermore, the two-photon process is confirmed to be dominant between Yb and Er in oxide solid solution (YIn)O. Optical temperature sensitivity is also investigated systematically in order to explore the application of the oxide solid solution (YIn)O. The temperature-dependent green fluorescence at 528 and 567 nm was investigated with the range of 313-573 K. 0.316% K is the maximum absolute sensitivity at 503 K, which is higher than most Yb/Er co-doped systems. In addition, the solid solution (YIn)O:Yb,Er has better thermal stability and stronger UC emission than a simple substance with excellent temperature sensing performance. It indicates that Yb-Er ions co-doped (YIn)O solid solution is a good candidate for optical temperature sensing.
氧化物在物理和化学性质上是稳定的。采用常规固相法制备了非接触式温度计——镱铒离子共掺杂固溶体（YIn）O。XRD获得的结构结果表明已得到纯相固溶体（YIn）O。固溶体（YIn）O具有相似的晶体结构，特别是YO和InO具有相同的空间群（3̄）。500至600 nm的绿色发射归因于铒的4f-4f跃迁：567 nm处的S→I和528 nm处的H→I。630至720 nm的红色发射归因于Er：F→I。上转换发光随激光二极管功率以及铒和镱含量变化很大。此外，在氧化物固溶体（YIn）O中，镱和铒之间的双光子过程被证实占主导。还系统地研究了光学温度灵敏度，以探索氧化物固溶体（YIn）O的应用。在313 - 573 K范围内研究了528和567 nm处与温度相关的绿色荧光。0.316% K是503 K时的最大绝对灵敏度，高于大多数镱/铒共掺杂体系。此外，固溶体（YIn）O:Yb,Er比具有优异温度传感性能的单质具有更好的热稳定性和更强的上转换发射。这表明镱铒离子共掺杂（YIn）O固溶体是光学温度传感的良好候选材料。
