过渡金属敏化稀土化合物近红外发光性能研究进展

稀土元素由于具有特殊的电子构型而使得稀土原子或离子的化合物(配合物)有很多独特的物理和化学性质，尤其是稀土化合物的发光性能，但由于跃迁选择定则，稀土化合物的发光性能比较弱，需要用过渡金属离子对稀土化合物进行敏化，以增强其发光性能。在这个过程中，过渡金属离子的最低激发态不直接参与发光的辐射跃迁，却可以改善稀土化合物的发光性能。围绕过渡金属敏化稀土化合物发光的研究方法、研究成果以及其发展前景进行了综述。

Progress in research of transition metal sensitized near-infrared luminescence for rare-earth compounds

Rare-earth compounds are of some unique physical and chemical properties because of their special electronic configurations, especially its luminescent properties. However, luminescence from rare-earth ions is rather weak according to transfer selection rules. To enhance their luminescence, it is necessary to sensitize the rare-earth ions with transition-metal ions. In this process, the lowest excited states of transition-metal ions can improve the luminescent properties though they do not work in the emission transfer of luminescence directly. This paper concentrates on research methods and achievements as well as the future of the transition-metal sensitized luminescence of rare-earth compounds.