Prof. Dr. Gregor Witte
Philipps-Universität Marburg
Department of Physics, Molecular Solids
Renthof 7, 35032 Marburg
Phone: +49 6421 28-21384
E-mail: gregor.witte@physik.uni-marburg.de
www:
http://www.uni-marburg.de/fb13/forschungsgruppen/molekulare-festkoerperphysik
Position: Professor (W3)
Expertise: Organic semiconductor films, physical chemistry of
adsorbates, template and interface controlled growth of thin films,
X-ray absorption spectroscopy
Project A2: Inorganic/Organic and Organic/Organic Interfaces: Structure and Charge Transport
University Education
| 2002 | Habilitation (Dr. rer. nat. habil.) in Physical Chemistry, Ruhr-Universität Bochum „Physico-chemical properties of organic thin films on copper surfaces“ |
| 1995 | Doctoral degree in Physics (Dr. rer. nat.), Georg-August Universität Göttingen, Dissertation on “Characterization of structure and dynamics of clean and adsorbate covered oxid and metal surfaces”, thesis advisor: Prof. J. P. Toennies |
| 1989 | Diploma degree in Physics (Dipl. Phys.), Georg-August Universität Göttingen, supervisor: Prof. J. P. Toennies |
| 1983-89 | Study of Physics at the Georg-August Universität Göttingen |
Professional Experience
| 2008- | Professor (W3) for Experimental Physics, Philipps-Universität Marburg |
| 2003-08 | Lecturer/docent, Department of Chemistry, Ruhr-Universität Bochum |
| 1998-02 | Group leader (assistant professor), Chair of physical chemistry I at the Ruhr-Universität Bochum |
| 1996-97 | Postdoc, IBM Almaden Research Center, San Jose (USA), Department Storage and Technology (Dr. D. Chambliss) and |
| Lawrence Berkeley National Laboratory (National Center for Electron Microscopy), Berkeley (USA) (imaging of magnetic thin films by spin-polarized LEEM) | |
| 1991-95 | Research Assistant at the MPI for Strömungsforschung in Göttingen |
| 1990-91 | Civil service at the Diakonisches Werk in München and freelancer within the framework of the satellite project “ORFEUS“ (project assistant for optical alignment of a SpaceShuttle based UV-telescope at Kaiser-Threde GmbH, München) |
| 1989-90 | Research Assistant at the MPI for Strömungsforschung in Göttingen |
Honours, Awards and other Proofs of Qualification
| 2012-15 | Vice Dean (2012-13) and Dean (2013-15) of the Faculty of Physics at the Philipps-University Marburg |
| 1996 | Postdoctoral Fellowship of the DFG |
Selected Publications
- P. Bagus, D. Käfer, G. Witte, Ch. Wöll, Work function Changes Induced by Charged Adsorbates: Origin of the Polarity Asymmetry, Phys. Rev. Lett. 100, 126101 (2008).
- D. Käfer, A. Bashir, X. Dou, G. Witte, K. Müllen, Ch. Wöll, Evidence for Band-like Transport in Graphene-based Organic Monolayers, Adv. Mater. 22, 384 (2010).
- W. Khalid, M. El Helou, T. Murböck, Z. Yue, J.-M. Montenegro, K. Schubert, G. Göbel, F. Lisdat, G. Witte, W. J. Parak, Immobilization of quantum dots via conjugated self-assembled monolayers and their application as a light-controlled sensor for the detection of hydrogen peroxide, ACS Nano 5, 9870 (2011).
- K. Kolata, T. Breuer, G. Witte, S. Chatterjee, Molecular Packing Determines Singlet Exciton Fission in Organic Solids, ACS Nano 8, 7377 (2014).
- T. Breuer, G. Witte, Controlling Nanostructures by Templated Templates: Inheriting Molecular Orientation in Binary Heterostructures, ACS Appl. Mater. Interfaces 7, 20485 (2015).
- T. Breuer, A. Karthäuser, G. Witte, Effects of Molecular Orientation in Acceptor-Donor Interfaces between Pentacene and C60 and Diels-Alder Adduct Formation at the Molecular Interface, Adv. Mater. Interfaces 3, 1500452 (2016).
- P. Rotter, B. A. J. Lechner, A. Morherr, D.M. Chisnall, D.J. Ward, A.P. Jardine, J. Ellis, W. Allison, B. Eckhardt, G. Witte, Coupling of diffusion and orientation of pentacene on an organic surface, Nat. Mater. 15, 397 (2016).
- A. Rinn, T. Breuer, J. Wiegand, M. Beck, J. Hübner, R. C. Döring, M. Oestreich, W. Heimbrodt, G. Witte, S. Chatterjee, Interfacial Molecular Packing Determines Exciton Dynamics in Molecular Heterostructures: the Case of Pentacene – Perfluoropentacene, ACS Appl. Mater. Interfaces 9, 42010 (2017).
- T. Rangel, A. Rinn, S. Sharifzadeh, F. H. da Jornada, S. G. Louie, A. Pick, G. Witte, L. Kronik, J. B. Neaton, S. Chatterjee, Low-lying excited-states in crystalline perylene in experiment and theory, PNAS 115, 284 (2018).
- F. Widdascheck, A. A. Hauke, G. Witte, A Solvent-Free Solution: Vacuum-Deposited Organic Monolayers Modify Work Functions of Noble Metal Electrodes, Adv. Funct. Mater. 29, 1808385 (2019).
