基于Eu^2+与Sm^3+的几种新型多色长余辉材料  

Research Progress on Multi-Color Long Persistent Luminescence Materials by Eu^2+/Sm^3+

作　　者：王育华[1] 李根 Wang Yuhua;Li Gen(School of Physical Science and Technology,Lanzhou University,Lanzhou 730000,China;Faculty of Physics and Electronic Science,Hubei University,Wuhan 430062,China)

机构地区：[1]兰州大学物理科学与技术学院,甘肃兰州730000 [2]湖北大学物理与电子科学学院,湖北武汉430062

出　　处：《中国稀土学报》2020年第3期292-306,I0001,共16页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金项目(51672115和51372105)资助。

摘　　要：长余辉发光材料因其节能环保的特点备受人们关注,目前能够满足实际应用的只有绿色长余辉发光材料,严重缺乏具备一定性能的红、黄色等长波长发射的长余辉发光材料。此外,长余辉发光机制尚未取得共识,所提出的相关机制模型均具有一定的局限性,无法为长余辉发光材料的开发和研究提供有力的理论指导。针对上述问题,主要介绍了近期研制的几种不同余辉颜色的新型长余辉材料,并根据材料发光、余辉等特性对余辉机制进行了探讨。Long persistent luminescence materials have attracted much attention due to their advantages of solar energy utilization and environment friendly. In order to meet the requirements in the practical application, the afterglow performance need to be improved and their color should be enriched. At present, only green long persistent luminescence materials are commercially available. Others, especially the red long persistent luminescence materials, are still in great scarcity and none of them is good enough to be applied to practical applications. In addition, the exact mechanisms governing phosphorescence in materials have not yet to be clarified and then researchers have no scientific and instructional approach to develop new good long persistent luminescence materials. In view of these problems, several long persistent luminescence materials with different colors were introduced. Their optical properties are studied in detail and then possible mechanism was proposed.

关 键 词：多色 长余辉发光 氧空位 热释光 氧化物 稀土 

分 类 号：TB34[一般工业技术—材料科学与工程]