Author:
Yang Zhi-Ping ,Ma Xin ,Zhao Pan-Pan ,Song Zhao-Feng ,
Abstract
The SrAl2B2O7:Dy3+ phosphor is synthesizd through a general high temperature solid-state reaction, and its luminescence properties are investigated. The emission spectrum of SrAl2B2O7:Dy3+ shows the bands at 480nm,573nm and 678nm under the 365nm excitation, corresponding to the 4F9/2→6H15/2,4F9/2→6H13/2 and 4F9/2→6H11/2 typical transitions of Dy3+ respectively. The excitation spectrum for 573nm emission has excitation bands at 295 nm,325 nm,350 nm,365 nm and 400nm. The influence of doped Dy3+ contentration on the emission spectrum and the luminescent intensity of SrAl2B2O7:Dy3+ is investigated. The result shows that the intensity ratio of yellow emission (573nm) to blue emission (483 nm), Iy/Ib, increases with the increase of Dy3+ concentration, which may be explained by the Judd-Ofelt theory. The luminescent intensity increases first with the increase of Dy3+ concentration, then decreases. The concentration self-quenching is attributed to the d-d interaction according to the Dexter theory. The introducing of charge compensation agents of Li+, Na+ and K+ ions can augment the emission intensity. It is found that Li+ ions are the best to enhance the emission intensity.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Reference11 articles.
1. Yao G Q, Duan J F, Ren M, Yu H D, Lin J H 2001 Chin. J. Lumin. 22 (Suppl) 21
2. Hu Y S, Zhuang W D, Ye H Q, Wang D H, Zhang S S, Huang X W 2005 J. Alloys. Compd. 390 226
3. Li X, Yang Z P, Guan L, Guo Q L 2009 Mater. Lett. 63 1096
4. Yang Z P, Liu Y F 2006 Acta. Phys. Sin. 55 4946 (in Chinese) [杨志平、刘玉峰 2006 物理学报 55 4946\]
5. Ma M X, Tu M S, Zhu D C 2009 Acta. Phys. Sin. 58 6512(in Chinese) [马明星、涂铭旌、朱达川 2009 物理学报 58 6512\]
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献