光子上转换
发光
材料科学
镧系元素
Crystal(编程语言)
吸收(声学)
激发
单晶
光电子学
化学
结晶学
离子
物理
有机化学
量子力学
复合材料
程序设计语言
计算机科学
作者
Guotao Sun,Yao Xie,Yuxin Wang,Hongjie Zhang,Lining Sun
标识
DOI:10.1002/anie.202312308
摘要
Metal-based upconversion luminescence transforming high-energy photons into low-energy photons is an attractive anti-Stokes shift process for fundamental research and promising applications. In this work, we developed the upconversion luminescence in co-crystal assemblies consisting of discrete mononuclear Yb and Sm complexes. The characteristic visible emissions of Sm3+ were observed under the excitation of absorption band of Yb3+ at 980 nm. A series of co-crystal assemblies were investigated based on mononuclear Yb and Sm complexes, and the strongest luminescence was obtained when the molar concentration between Yb3+ and Sm3+ is equivalent. The crystal structure was fully characterized by the single crystal X-ray diffraction and upconverting energy transfer mechanisms were verified as cooperative sensitization upconversion and energy transfer upconversion. This is the first example of Sm3+ -based upconverting luminescence in discrete lanthanide complexes which present as co-crystal assemblies at room temperature.
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