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Seit einigen Jahren wird die sogenannte organische Elektronik als zukunftsweisende Technologie entwickelt. Wissenschaftlerinnen und Wissenschaftler der Arbeitsgruppe um IRIS-Mitglied Prof. Norbert Koch haben nun in Kooperation mit dem Helmholtz-Zentrum Berlin (HZB) klären können, welcher Mechanismus das Dotieren organischer Halbleiter bestimmt. Demnach findet kein direkter Elektronenübertrag mit dem Dotier-Molekul statt. Vielmehr entsteht - im Gegensatz zu bisherigen Vermutungen - zunächst ein zwischenmolekularer Komplex. Erst die Anregung der Komplexe führt zu beweglichen Ladungsträgern, die die Leitfähigkeit erhöhen.

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Katja Wundermann, delegated teacher at the ProMINT-Kolleg, takes with pupils of the Käthe-Kollwitz-Oberschule and in alliance with the Berliner Heinrich-Hertz-Gymnasium and a team of Turin (both secondary schools) first place in the European-League. The SPHERES-satellites are part of the ZERO-Robotics/SPHERES competition arranged by MIT, NASA and the European Space Agency ESA. The final round of the US-teams and the EU-teams, both have been carried out on board at the international space station ISS. Via live video conference to ISS the members of the European alliances at ESAs headquarter in Noordwijk (NL) could check the capability of their codes in direct competition.

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„Controlling on-surface polymerization by hierarchical and substrate-directed growth“

Published in “Nature Chemistry” (March 2012 issue, online 15 January 2012)

Organizing matter on the smallest scale, i. e. in the region of just few nanometers (1 nm = one billionth of a meter), and making it utilizable are the key challenges of nanotechnology. In doing so, strong interest lies in controlled establishing of stable and well-defined nanostructures on the basis of single molecular components. A few years ago such bottom-up nano-architecture could be realized for its first time, however according to the one-step method with a limited level of complexity.

The same research team, consisting of chemists of the Humboldt-Universität zu Berlin around Professor Stefan Hecht (member of IRIS Adlershof), succeeded in cooperation with physics of the Fritz-Haber-Institut and of the Laboratorio TASC in Trieste to considerably improve the method they once developed.

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With The Caroline-von-Humboldt-Preis award, endowed with €15,000.00, is annually granted to excellent young female scientists occupied at the Humboldt-Universität zu Berlin for outstanding research. It is the highest endowed research award of its kind in Germany, granted for the second time and is explicitly announced for young female scientists. This year’s awardee is the physicist Ms Dr. Costanza Toninelli.
The award will be granted to Ms Dr. Costanza Toninelli at the Humboldt-Unversität zu Berlin’s Senatssaal on the second of November.

„Ms Toninelli’s fantastic project is extremely impressive. It deals with photonics in nanostructures and is in particular about stabile molecules, which are embedded in semiconductor nanostructures,” Prof. Dr. Peter Frensch, Vice President for Research and Chairman of the Jury, explains. At the moment Ms Toninelli is occupied with her postdoctoral research at the ETH Zurich and will be due to the award working as “Scientist in Residence” within the research group of IRIS member Prof. Dr. Benson at the Institute of Physics, above all at The Collaborative Research Centre HIOS (SFB 951). This Collaborative Research Center is doing research on artificial hybrid materials consisting of semiconductors, conjugated organic materials, and metal nanostructures. The Scientists aim to bring these diverse materials in harmony in order to gain new physical and chemical qualities for optoelectronic elements.

For registration please contact: cvh-prize@hu-berlin.de

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