Abstracts 2004

Abstract of Publication No. 479

Christine Reinhard, Karl Krämer, Daniel A. Biner and Hans-Ulrich Güdel
V3+ sensitized upconversion in Cs2NaScCl6:Pr3+;V3+ and K2NaScF6:Er3+;V3+
J. Alloys Comp. 134, 133-136 (2004)      Full Text (PDF)      DOI-Link     

Abstract: Photon upconversion (UC) processes from the near-infrared (NIR) to the visible (VIS) are studied in Cs2NaScCl6:Pr3+;V3+ and K2NaScF6:Er3+;V3+ by high-resolution optical spectroscopy. The transition metal ion with a broad dd absorption in the NIR acts as a sensitizer and the lanthanide ion as an upconverter. UC processes do occur in both title systems, but with rather low efficiencies. Specific UC mechanisms can be identified from the spectroscopic results.

Last modified: 13.12.11 by Gabriela Frei