稀土掺杂上转换发光材料的研究进展  

Research Progress of Rare Earth Doped Upconversion Luminescent Materials

作　　者：贾松 王雪飞 史祎诗 Jia Song;Wang Xuefei;Shi Yishi(School of Chemistry Engineering,University of Chinese Academy of Sciences,Beijing 101408,China)

机构地区：[1]中国科学院大学化学学院,北京101408

出　　处：《工程研究（跨学科视野中的工程）》2024年第2期114-136,共23页JOURNAL OF ENGINEERING STUDIES

基　　金：中央高校基本科研业务费;北京市自然科学基金(8222074)。

摘　　要：上转换发光,一种呈现反斯托克斯位移特性的发光现象,主要通过稀土元素制备的材料来实现。本文深入探讨了稀土掺杂上转换材料的发光机理,概述了常用的制备技术,并全面评述了其在生物医学、防伪技术、信息存储等多个领域的现有应用,同时展望了其在工程领域的潜在应用前景。尽管上转换发光纳米材料在功能多样性方面表现出远超块状材料的显著优势,但其合成产率和发光效率仍存在挑战,处于相对较低水平。逐步攻克这些难题,将有助于进一步拓宽上转换发光材料的应用领域。Upconversion luminescence is a kind of anti-stokes shift luminescence.The upconversion luminescent materials which usually composed by rear earth elements and have some properties superior to ordinary organic materials,such as long luminous lifetime,photobleaching resistance,narrow emission bands and so on.Therefore,this unique phenomenon that absorbing low energy photons and emitting high energy photons has been attracted the attention of researchers in many fields.In this review,the most common mechanism of energy transfer upconversion was described in detail,two types of complexed lanthanide ions-mediated energy migration upconversion mechanism that realized though core-shell structure and other upconversion mechanisms were also introduced.The synthesis methods that most widely reported Co-precipitation method in recently for preparing core or core multi-shells upconversion nanoparticles and hydrothermal method that widely used for preparation bulk materials were introduced.Importantly,due to the abundant emission bands of these lanthanide doped nanoparticles and the strongly penetration of near-infrared laser,these nanoparticles have been used in biological domain,such as photodynamic therapy to eliminate tumors or some bacteria,cell and tissue imaging that achieved sub-centimeter depth.In addition,colorful upconverison luminescent materials with the feature of multi-mode color tuning were used in high-level anti-counterfeiting,optical information storage and transparent display.Furthermore,the upconverision nanoparticles are expected to be applied to the engineering projects based on the changes of emission characters that originated form the influence of the temperature or fluid rate to the population of lanthanide ions and this non-invasive optical method requires simple equipment with low cost that could obtain accurate results.Besides,the upconversion materials that excited by near-infrared light seems like more promissing to use the solar energy,more photocatalysts base on the upconversion materials tha

关 键 词：稀土 上转换发光 发光材料 掺杂 

分 类 号：TB34[一般工业技术—材料科学与工程]