BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Light emitting materials excited by photon upconversion
DTSTART:20120525T140000
DTSTAMP:20260510T135208Z
UID:a50101cbe6feced318b4022f176191032273264f78aacad46addecd6
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Hans U. Güdel\, Department of Chemistry and Biochemistr
 y\, University of Bern\nThe principle and mechanisms of upconversion will 
 be briefly introduced. The richness of upconversion phenomena will then be
  illustrated with examples from our own work. The upconversion properties 
 can be tuned by chemical variation of the materials. Both lanthanide and t
 ransition metal ions exhibit upconversion phenomena in properly chosen env
 ironments. And the combination of f and d elements in the same material ca
 n produce completely new phenomena. The first upconversion experiments on 
 nanocrystals transparently dispersed in a solvent were done about ten year
 s ago. They will be shown\, and here is a picture
LOCATION:PH L1 503 http://plan.epfl.ch/?room=PH%20L1%20503
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR