Blue, green, and red upconversion emission from lanthanide-doped LuPO4 and YbPO4 nanocrystals in a transparent colloidal solution

被引:420
作者
Heer, S
Lehmann, O
Haase, M
Güdel, HU
机构
[1] Univ Bern, Dept Chem & Biochem, CH-3000 Bern 9, Switzerland
[2] Univ Hamburg, Inst Chem Phys, D-20146 Hamburg, Germany
关键词
colloids; lanthanides; luminescence; nanocrystals; upconversion;
D O I
10.1002/anie.200351091
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Light converter: The emission of visible light (Vis) upon excitation in the near-infrared (NIR) has been observed for the first time in a transparent solution. Excitation at 975 nm (marked red in the picture) of optically clear colloidal solutions of LuPO4:Yb3+, Tm3+, and YbPO4:Er3+ nanocrystals in chloroform leads to visible upconversion luminescence in the blue, green, or red spectral regions.
引用
收藏
页码:3179 / 3182
页数:4
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