期刊
CHEMICAL PHYSICS
卷 487, 期 -, 页码 75-86出版社
ELSEVIER
DOI: 10.1016/j.chemphys.2017.02.009
关键词
Sol-gel growth; MgAl2O4; Triply doped; Energy transfer; Luminescence; Colour turning; CIE
资金
- South African National Research Foundation (NRF) Thuthuka Programme [UID99266]
A series of the undoped, 0.1% Ce3+, 0.1% Eu2+, 0.1% Tb3+ singly doped and 0.1% Ce3+, 0.1% Eu2+, x% Tb3+ (0 <= x <= 2%) triply doped MgAl2O4 nanophosphors were synthesized by the sol-gel technique and thereafter annealed at 800 degrees C. The nanocrystals consist of the pure cubic structures. The type of the dopant and varying the Tb3+ mol% influence the crystallites size and morphology of the prepared powders. Photoluminescence (PL) results showed a red emission from Ce3+ singly doped MgAl2O4. Furthermore, the PL results revealed the existence of the energy transfer from Eu2+ -> Tb3+ -> Ce3+. CIE colour chromaticity showed that the colour can be tuned from bluish -> greenish by changing the Tb3+ mol% and the excitation wavelength. (C) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据