Frank Ortmann

Short CV

Prof. Ortmann studied physics and received his doctorate with “summa cum laude” from the Friedrich Schiller University Jena in 2009. In the same year, he joined CEA Grenoble as postdoctoral fellow and was awarded a Marie-Curie Fellowship in 2010. In 2011 he moved to the ICN2 Barcelona and in 2013 to TU Dresden. From 2014, he headed an Emmy Noether junior research group and was group leader at the excellence cluster cfaed from 2017. Since 2020, Prof. Ortmann has been at TUM.


Selected Awards

  • 2014, Emmy Noether junior research group 
  • 2010, Marie-Curie Fellowship 
  • 2010, Finalist for the Dissertation Prize of the German Physical Society, Condensed Matter Section
  • 2006, Rhode & Schwarz Faculty Award

Research Interests

excitons in organic materials, theoretical spectroscopy, quantum transport, electron-vibration coupling, polarons, semiconductor doping, spin-related phenomena


Selected Publications

  • M. Panhans and F. Ortmann "Efficient Time-Domain Approach for Linear Response Functions" arXiv preprint (2021); arXiv:2104.08608
     
  • M. Panhans, S. Hutsch, J. Benduhn, K. S. Schellhammer, V. C. Nikolis, T. Vangerven, K. Vandewal and F. Ortmann “Molecular vibrations reduce the maximum achievable photovoltage in organic solar cells” Nat. Commun. 11, 1488 (2020).
     
  • M. Schwarze, K. S. Schellhammer, K. Ortstein, J. Benduhn, C. Gaul, A. Hinderhofer, L. Perdigón Toro, R. Scholz, J. Kublitski, S. Roland, M. Lau, C. Poelking, D. Andrienko, G. Cuniberti, F. Schreiber, D. Neher, K. Vandewal, F. Ortmann and K. Leo “Impact of molecular quadrupole moments on the energy levels at organic heterojunctions” Nat. Commun. 10, 2466 (2019).
     
  • M. Schwarze, C. Gaul, R. Scholz, F. Bussolotti, A. Hofacker, K. S. Schellhammer, B. Nell, B. Naab, Z. Bao, D. Spoltore, K. Vandewal, J. Widmer, S. Kera, N. Ueno, F. Ortmann and K. Leo “Molecular Parameters Responsible for Thermally Activated Transport in Doped Organic Semiconductors” Nat. Mater. 18, 242 (2019).
     
  • C. Gaul, S. Hutsch, M. Schwarze, K. S. Schellhammer, F. Bussolotti, S. Kera, G. Cuniberti, K. Leo, and F. Ortmann “Insight into doping efficiency of organic semiconductors from the analysis of the density of states in n-doped C60 and ZnPc” Nat. Mater. 17, 439 (2018).
     
  • K. Vandewal, J. Benduhn, K. S. Schellhammer, T. Vangerven, J. E. Rückert, F. Piersimoni, R. Scholz, O. Zeika, Y. Fan, S. Barlow, D. Neher, S. R. Marder, J. Manca, D. Spoltore, G. Cuniberti, and F. Ortmann “Absorption Tails of Donor:C60 Blends Provide Insight into Thermally Activated Charge-Transfer Processes and Polaron Relaxation” J. Am. Chem. Soc. 139, 1699 (2017).
     
  • C. Yang, K.S. Schellhammer, F. Ortmann, S. Sun, R. Dong, M. Karakus, Z. Mics, M. Löffler, F. Zhang, X. Zhuang, E. Cánovas, G. Cuniberti, M. Bonn, and X. Feng “Coordination Polymer Framework Based On‐Chip Micro‐Supercapacitors with AC Line‐Filtering Performance” Angew. Chem. Int. Ed. 56, 3920 (2017).
     
  • D. Van Tuan, F. Ortmann, D. Soriano, S. O. Valenzuela, S. Roche “Pseudospin-driven spin relaxation mechanism in graphene” Nat. Phys. 10, 857-863 (2014).
     
  • F. Ortmann, F. Bechstedt, and K. Hannewald “Theory of charge transport in organic crystals: Beyond Holstein’s small-polaron model” Phys. Rev. B 79, 235206 (2009).  
     
  • F. Ortmann, F. Bechstedt, and W. G. Schmidt “Semiempirical van der Waals correction to the density functional description of solids and molecular structures” Phys. Rev. B 73, 205101 (2006).

A full list of publications can be found on the TUM Department of Chemistry.: