We thank A. Kornowski and S. Bartholdi-Nawrath for the TEM investigations and Dr. K. Kömpe for measuring X-ray powder diffractograms. Part of this work was financially supported by the Swiss National Science Foundation.
Blue, Green, and Red Upconversion Emission from Lanthanide-Doped LuPO4 and YbPO4 Nanocrystals in a Transparent Colloidal Solution†
Article first published online: 10 JUL 2003
Copyright © 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 42, Issue 27, pages 3179–3182, July 14, 2003
How to Cite
Heer, S., Lehmann, O., Haase, M. and Güdel, H.-U. (2003), Blue, Green, and Red Upconversion Emission from Lanthanide-Doped LuPO4 and YbPO4 Nanocrystals in a Transparent Colloidal Solution. Angew. Chem. Int. Ed., 42: 3179–3182. doi: 10.1002/anie.200351091
- Issue published online: 10 JUL 2003
- Article first published online: 10 JUL 2003
- Manuscript Received: 3 FEB 2003
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.