荧光粉
发光
分析化学(期刊)
激发态
离子
材料科学
紫外线
发光二极管
紫外线
二极管
光电子学
化学
原子物理学
物理
色谱法
有机化学
作者
Yuhang Li,Siyi Dai,Wentao Zhang,Peicong Zhang,Kehui Qiu
出处
期刊:Luminescence
[Wiley]
日期:2017-09-08
卷期号:32 (8): 1593-1596
被引量:10
摘要
Sr3 (PO4 )2 :Dy3+ ,Li+ phosphors were prepared using a simple high temperature solid method for luminescence enhancement. The structures of the as-prepared samples agreed well with the standard phase of Sr3 (PO4 )2 , even when Dy3+ and Li+ were introduced. Under ultraviolet excitation at 350 nm, the Sr3 (PO4 )2 :Dy3+ sample exhibited two emission peaks at 483 nm and 580 nm, which were due to the 4 F9/2 → 6 H15/2 and 4 F9/2 → 6 H13/2 transitions of Dy3+ ions, respectively. A white light was fabricated using these two emissions from the Sr3 (PO4 )2 :Dy3+ phosphors. The luminescence properties of Sr3 (PO4 )2 :Dy3+ ,Li+ phosphors, including emission intensity and decay time, were improved remarkably with the addition of Li+ as the charge compensator, which would promote their application in near-ultraviolet excited white-light-emitting diodes.
科研通智能强力驱动
Strongly Powered by AbleSci AI