Pr^(3+)掺杂红色长余辉发光材料研究进展

Research Progress on Pr^(3+) Doped Red Persistent Luminescent Materials

Pr^(3+)掺杂长余辉发光材料因其稳定高效的红色持久性发光而备受关注。近年来,Pr^(3+)掺杂红色长余辉发光材料的基础研究和应用探索均取得了长足的进步。本文总结了Pr^(3+)离子发光特性与电荷迁移带位置的关系,概述了最近报道的发光材料体系,讨论了余辉性能的优化途径,介绍了相关材料在信息加密、交流发光二极管(AC-LED)、生物成像、应力传感等新领域的应用。最后,指出了目前Pr^(3+)掺杂红色长余辉发光材料研究中仍存在的问题,并对其未来的研究方向进行了展望。

Pr^(3+) doped afterglow materials have attracted much attention due to their stable and efficient red persistent luminescence.In recent years,the basic research and application exploration of Pr^(3+)doped red afterglow materials have made great progress.This paper summarizes the relationship between luminescence characteristics of Pr^(3+) ions and position of intervalence charge transfer band,overviews the recently reported luminescent material systems,discusses the optimization method to improve persistent luminescence performance,and introduces the burgeoning application directions of the related materials in information encryption,AC-LED,biological imaging,and stress-sensing.Finally,the existing problems in the research of Pr^(3+) doped red afterglow luminescent materials are pointed out,and the future research directions of Pr^(3+) doped red afterglow luminescent materials are prospected.