Norbert Koch (physicist)

Norbert Koch (born June 20, 1971 in Villach ) is an Austrian physicist .

Life

Koch studied at the Technical University of Graz in Austria, and in 1997 he obtained his physics diploma with distinction from Günther Leising . In 2000 he also did his doctorate at the Technical University of Graz on the subject of "Electronic Properties of Organic / Metal Interfaces".

From 2000 to 2002 he was an associate member of the Joint Research Associate of the Department of Chemistry and the Department of Electrical Engineering at Princeton University , Princeton ( USA ), until 2004 an associate member (Research Associate) at the Institute of Physics at the Berlin Humboldt University in Berlin. Since 2004 he has headed the Emmy Noether Junior Research Group on Supramolecular Systems at the university there. In 2009, he accepted the offer of the Humboldt University for the professorship of Structure, Dynamics and Electronic Properties of Molecular Systems. His working group is located in the former engine height test bench , a historical monument in Adlershof .

Koch conducts research in the fields of organic electronics and molecular electronics, where the focus is on the realization of opto-electronic components (light-emitting diodes, solar cells, transistors, memory elements) with organic semiconductor materials. Using angle- and energy-dependent photoelectron spectroscopy , his group investigated the electronic band structure of crystalline layers of pentacene at room temperature. Evidence of band-like charge carrier transport was found in these layers. This knowledge could be applied in the field of printable flexible circuits, organic light-emitting diodes (OLEDs) and displays through to large OLED flat screens. In contrast to the established standard technology based on silicon , the relationships in organic electronic materials are much more complex.

Koch is a member of the German Physical Society , the American Vacuum Society and the Materials Research Society .

Awards

In 2008, Koch received the Karl Scheel Prize for his research on "Conjugated organic materials and their functional interfaces".

Publications (selection)

• B. Bröker, OT Hofmann, GM Rangger, P. Frank, R.-P. Blum, R. Rieger, L. Venema, A. Vollmer, K. Müllen, JP Rabe, A. Winkler, P. Rudolf, E. Zojer, N. Koch: Density-Dependent Reorientation and Rehybridization of Chemisorbed Conjugated Molecules for Controlling Interface Electronic Structure. Phys. Rev. Lett. 104 (2010) 246805
• H. Yamane, A. Gerlach, S. Duhm, Y. Tanaka, T. Hosokai, YY Mi, J. Zegenhagen, N. Koch, K. Seki, F. Schreiber: Site-Specific Geometric and Electronic Relaxations at Organic-Metal Interfaces. Phys. Rev. Lett. 105 (2010) 046103
• S. Blumstengel, H. Glowatzki, S. Sadofev, N. Koch, S. Kowarik, JP Rabe, F. Henneberger: Band-offset engineering in organic / inorganic semiconductor hybridstructures. Phys. Chem. Chem. Phys. 12 (2010) 11642
• P. Frank, T. Djuric, M. Koini, I. Salzmann, R. Rieger, K. Müllen, R. Resel, N. Koch, A. Winkler: Layer growth, thermal stability and desorption behavior of hexaaza-triphenylene hexacarbonitrile on Ag (111). J. Phys. Chem. C 114 (2010) 6650
• K. Medjanik, D. Kutnyakhov, SA Nepijko, G. Schönhense, S. Naghavi, V. Alijani, C. Felser, N. Koch, R. Rieger, M. Baumgarten, K. Müllen: Electronic structure of large disc-type donors and acceptors. Phys. Chem. Chem. Phys. 12 (2010) 7184
• J.-O. Vogel, I. Salzmann, S. Duhm, JP Rabe, N. Koch, Phase-separation and mixing in thin films of co-deposited rod-like conjugated molecules. J. Mater. Chem. 20 (2010) 4055

Web links

• CV of Norbert Koch