Dr. Marina Gerhard

Philipps-Universität Marburg

Department of Physics

Renthof 5, 35032 Marburg
Phone: +49 6421 28-22122
Fax: +49 6421 28-27036
Email: marina.gerhard@physik.uni-marburg.de


Organic and inorganic semiconductors, disordered materials, optical and terahertz spectroscopy, time-resolved photoluminescence spectroscopy, photoluminescence microscopy

University Education


Doctoral degree in Physics (Dr. rer. nat.), Philipps-Universität Marburg, supervisor: Prof. Martin Koch

2011 Master degree in Physics (M. Sc.), Philipps-Universität Marburg, supervisor: Prof. Martin Koch
2006-11 Undergraduate and graduate studies of physics, Universität Marburg (Bachelor degree in 2009)

Professional Experience

2019- Postdoc, Department of Physics (Prof. M Koch),
Philipps-Universität Marburg
2016-19 Postdoc, Department of Chemical Physics (Prof. Ivan Scheblykin),
Lund University

Honours, Awards and other Proofs of Qualification

2017-19 Postdoctoral Fellowship (Wenner-Gren Foundation, Sweden)
2012-14 EXIST scholarship (BMWi)

Selected Publications

  1. R. J. B. Dietz, M. Gerhard, D. Stanze, M. Koch, B. Sartorius, M. Schell, THz generation at 1.55 µm excitation: six-fold increase in THz conversion efficiency by separated photoconductive and trapping regions, Opt. Express 19, 25911 (2011).
  2. A. P. Arndt, M. Gerhard, A. Quintilla, I. A. Howard, M. Koch, U. Lemmer, Time-Resolved Charge-Transfer State Emission in Organic Solar Cells: Temperature and Blend Composition Dependence of Interfacial Traps, J. Phys. Chem. C 119, 13516 (2015).
  3. M. Gerhard, A. P. Arndt, I. A. Howard, A. Rahimi-Iman, U. Lemmer, M. Koch, Temperature and Energy-Dependent Separation of Charge-Transfer States in PTB7-Based Organic Solar Cells, J. Phys. Chem. C 119, 28309 (2015).
  4. V. Belova, P. Beyer, E. Meister, T. Linderl, M.-U. Halbich, M. Gerhard, S. Schmidt, T. Zechel, T. Meisel., A. V. Generalov, A. S. Anselmo, R. Scholz, O. Konovalov, A. Gerlach, M. Koch, A. Hinderhofer, A. Opitz, W. Brütting, F. Schreiber, Evidence for Anisotropic Electronic Coupling of Charge Transfer States in Weakly Interacting Organic Semiconductor Mixtures, J. Am. Chem. Soc. 139, 8474 (2017).
  5. A. P. Arndt, M. Gerhard, M. Koch, U. Lemmer, I. A. Howard, Identifying Charge-Transfer States in Polymer: Fullerene Heterojunctions by Their Emission Polarization Anisotropy, J. Phys. Chem. C 121, 6357 (2017).
  6. K. Broch, M. Gerhard, M. Halbich, S. Lippert, V. Belova, M. Koch, F. Schreiber, Timeresolved photoluminescence spectroscopy of charge transfer states in blends of pentacene and perfluoropentacene, Phys. Stat. Solidi (RRL) 11, 1700064 (2017).
  7. M. Gerhard, A. P. Arndt, M. Bilal, U. Lemmer, M. Koch, I. A. Howard, Field-induced exciton dissociation in PTB7-based organic solar cells, Phys. Rev. B 95, 195301 (2017).
  8. A. Merdasa, A. Kiligaridis, C. Rehermann, M. Abdi-Jalebi, J. Stöber, B. Louis, M. Gerhard, S. D. Stranks, E. L. Unger, I. G. Scheblykin, Impact of Lead Iodide on the Recombination Kinetics in Metal Halide Perovskites, ACS Energy Lett. 4, 1370 (2019).
  9. M. Gerhard, B. Louis, R. Camacho, A. Merdasa, J. Li, A. Kiligaridis, A. Dobrovolsky, J. Hofkens, I. G. Scheblykin, Microscopic insight into non-radiative decay in perovskite semiconductors from temperature-dependent luminescence blinking, Nat. Commun. 10, 1698 (2019).
  10. E. Geringer, E. Leusmann, F. Tamborino, M. Gerhard, M. Koch, S. Dehnen, Trapping of ZnCl2 by bipyridyl-functionalized organotin sulfide clusters, and its effect on optical properties, Chem. Commun. 56, 4769 (2020).