稀土发光材料应用_稀土三基色发光材料_稀土发光原理

稀土发光材料的研究现状与应用

材化 092 班 …指导老师：….

(陕西科技大学材料科学与工程学院 陕西 西安 710021）

摘 要 稀土元素包括元素周期表中的镧系元素(Ln)和钪(Sc)、钇(Y)，共17个元素。由于稀土离子的4f电子在不同能级之间的跃迁产生的丰富的吸收和发射光谱，使其在发光材料中具有广泛的应用。稀土元素的特殊原子结构导致它们具有优异的发光特性，用于制造发光材料、电光源材料和激光材料，其合成的发光材料充分应用在照明、显示、医学、军事、安全保卫等领域中。稀土发光材料应用稀土元素在我国的储量丰富，约占全世界的40%。本文综述了稀土发光材料的发光机理、发光特性、化学合成方法、主要应用领域以及稀土矿藏的开采方面存在的问题，并预测了今后深入研究的方向。

关键词 稀土，发光材料, 应用

Current Research and Applications of rare earth luminescent

materials

Abstract Rare earth elements, including the lanthanides (Ln) and scandium (Sc) , yttrium (Y)of the periodic table, a total of 17 elements. a plenty of absorption and emission spectra in the light-emitting materials produced by the 4f electrons of rare earth ions transiting between different energy levels lead to a wide range of

applications of rare earth luminescent materials. Special atomic structure of rare earth elements lead to their excellent luminescence properties, which is used in the

manufacture of luminescent materials, the electric light materials and laser materials,

1 / 8

the synthesis of light-emitting materials are fully applied in lighting, display, medical, military, and security and other areas. The rare earth elements is abundant in China , with 40 percent of the total in the world. The luminescence mechanism of luminescent materials, luminescent properties, chemical synthesis methods, the main application areas, as well as the problems of the exploitation of rare earth minerals, and predict the direction of future in-depth research are all have being summarized in this paper. Key word rare earth, luminescent materials, application