Progress of preparation and application of rare earth luminescent materials

doi:10.3969/j.issn.0438-1157.2014.07.021

Abstract

Abstract: Due to their special electronic configurations, rare earth elements have excellent optical properties, which make them a treasure of new luminescent materials. Recently, in the lighting, display, analysis, testing and other areas, rare earth luminescent materials have been widely used. The knowledge gained thus far has allowed the development of various rare earth luminescent materials, such as rare earth long after-glow phosphors and rare earth complexes luminescent materials. Herein two kinds of new rare earth luminescent materials are introduced. They are rare earth doped "quantum cutting" light-emitting materials with efficient down-conversion efficiency and rare earth doped "up-conversion" light-emitting nanocrystals with great potential in the biomedical field. The emitting mechanisms of the two luminescent materials are described, and the progress of preparation and application is highlighted.

Key words: rare earth, luminescence, quantum cutting, up-conversion

摘要： 稀土元素特殊的电子构型，使其具有优异的光性能，成为新的发光材料的宝库。在照明显示、分析检测等领域，稀土发光材料近年来已经得到了广泛的应用。而且也有多种不同的稀土发光材料问世，如稀土长余辉发光材料和稀土配合物发光材料等。重点介绍了两种新型的稀土发光材料：拥有高效下转换发光效率的稀土掺杂“量子剪裁”发光材料和在生物医学领域有着巨大潜力的稀土掺杂“上转换”发光纳米晶体。对两种发光材料的发光机理进行了描述，并重点展示了两种材料的制备和应用进展。

关键词: 稀土, 发光, 量子剪裁, 上转换

CLC Number:

TG146.4

SUN Rongjin, QIU Peiyu, ZHANG Chunlei, GAO Guo, CUI Daxiang. Progress of preparation and application of rare earth luminescent materials[J]. CIESC Journal, 2014, 65(7): 2620-2628.

孙容瑾, 邱培宇, 张春雷, 高国, 崔大祥. 稀土掺杂量子剪裁和上转换发光材料的制备及应用进展[J]. 化工学报, 2014, 65(7): 2620-2628.

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