Bright upconversion white light emission in transparent glass ceramic embedding Tm3+/Er3+/Yb3+:β-YF3 nanocrystals

Bright upconversion white light emission in transparent glass ceramic embedding Tm3+/Er3+/Yb3+:β-YF3 nanocrystals
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DOI:
10.1063/1.2825285
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发表时间:
2007-12-17
影响因子:
4
通讯作者:
Huang, Ping
Huang, Ping
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Chen, Daqin;Wang, Yuansheng;Huang, Ping

文献摘要

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在976 nm单激光激发下,在含有Tm 3 +/Er 3 +/Yb 3+:beta-YF 3纳米晶的透明玻璃陶瓷中同时产生了强烈的红色(Er 3+:F-4(9/2)-> I-4(15/2),Tm 3+:(1)G(4)-> F-3(4))、绿色(Er 3+:H-2(11/2),S-4(3/2)-> I-4(15/2))和蓝色(Tm 3+:D-1(2)-> F-3(4),(1)G(4)-> H-3(6))上转换发光。结果表明,Tm 3+对Er 3+的红光发射具有敏化作用,Er 3+对Tm 3+的蓝光、红光和近红外上转换发射具有猝灭作用。通过调节材料中稀土离子的浓度,可以容易地调节发光的各种颜色,包括具有CIE-X=0.310和CIE-Y=0.358的完美和明亮的白色光。(c)2007年,美国物理学会。
Intense red (Er3+:F-4(9/2)-> I-4(15/2), Tm3+:(1)G(4)-> F-3(4)), green (Er3+:H-2(11/2), S-4(3/2)-> I-4(15/2)), and blue (Tm3+:D-1(2)-> F-3(4), (1)G(4)-> H-3(6)) upconversion emissions were simultaneously generated in the transparent glass ceramics containing Tm3+/Er3+/Yb3+:beta-YF3 nanocrystals under single 976 nm laser excitation. It was demonstrated that Tm3+ behaves as the sensitizer for red luminescence of Er3+ and Er3+ as the quenching center for blue, red, and near-infrared upconversion emissions of Tm3+. Various colors of the luminescence, including perfect and bright white light with CIE-X=0.310 and CIE-Y=0.358, can be easily tuned by adjusting the concentrations of the rare earth ions in the material. (c) 2007 American Institute of Physics.