Karl Leo

Karl Leo (born 10 July 1960 in Freiburg im Breisgau, Baden-Württemberg, Germany) is a German physicist.

Career

Leo studied physics at the Albert-Ludwigs-Universität Freiburg and obtained the Diplomphysiker degree with a thesis on solar cells under supervision of Adolf Goetzberger at the Fraunhofer-Institut für Solare Energiesysteme. In 1986 he joined the Max-Planck-Institut für Festkörperforschung in Stuttgart for a PhD under the guidance of Hans Queisser. He then joined AT&T Bell Laboratories in Holmdel (New Jersey) as a postdoctoral research associate. In 1991 he joined the RWTH Aachen as an assistant professor and obtained the Habilitation degree. In 1993 he joined the Technische Universitaet Dresden as a professor of optoelectronics. Since 2002 he has been also with the Fraunhofer-Institut für Photonische Mikrosysteme, currently as director.

Achievements

Leo works in the field of semiconductor optics and the physics of thin organic films. In 1992 he discovered Bloch oscillations in a semiconductor superlattice. His work on organic semiconductors led to Organic Light Emitting Diodes with the highest power efficiencies reported and to Organic Solar Cells with leading efficiency values.[1] In 2002 he won the Leibniz award, which is Germany's most prestigious scientific award.[2]

Awards
gollark: > what's non-trivial about sending data from two sources?You have to actually have a backend instead of just a folder of static files behind nginx, which adds significant complexity.
gollark: Anyway, the web platform can be very fast, but people mostly don't care. I'm not sure *why*, since apparently a few hundred ms of load time can reduce customer engagement or something by a few %, which is significant, but apparently people mostly just go for easy in-place solutions like using a CDN rather than actually writing fast webpages.
gollark: Nope, it's mostly static. The SSG is actually a horrible Node script.
gollark: The website.
gollark: What osmarks.tk does is actually just make the site mostly static and have some JS pull in comments and stuff.

References
  1. Leading Organic Solar Cell efficiencies by Heliatek. http://www.heliatek.com/en/press/press-releases/details/heliatek-sets-new-organic-photovoltaic-world-record-efficiency-of-13-2 Archived 2018-10-19 at the Wayback Machine
  2. Leibniz award is the most important scientific award in Germany. ("Der Gottfried Wilhelm Leibniz-Preis ist der wichtigste Forschungsförderpreis in Deutschland.") https://www.bmbf.de/de/der-gottfried-wilhelm-leibniz-preis-575.html
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