Although many of the underlying basic processes in OPV and hybrid solar cells have been investigated during the past 20 years, the origin of the open circuit voltage is not fully understood. In particular, the influence of cell design, morphology, and the choice of material as light absorber is still not clear. In addition, the continuous development of new absorber classes and cell designs makes it more difficult to find an appropriate overall description.
In order to investigate this key characteristic of solar cells, Sb2S3 as inorganic low cost material and perovskite as new high efficiency absorber are investigated, including their properties in various morphologies.
- 1985 born in Aktobe, Kazakhstan
- 2011 Bachelor of Science, University of Konstanz
- "Bottom-Up-Herstellung von Graphen-Nanoribbons auf Metalloberflächen"; Priv. Doz. Dr. Mikhail Fonin
- 2013 Master of Science, University of Konstanz: "Nanostructured Extremely Thin Absorber Solar Cells"; Prof. Dr. Lukas Schmidt-Mende
T. Kollek, D. Wurmbrand, S. T. Birkhold, E. Zimmermann, J. Kalb, L. Schmidt-Mende, S. Polarz. Thiophene Functionalized Hybrid Perovskite Micro-Rods and their Application in Photodetector Devices for Investigating Charge Transport Through Interfaces in Particle-Based Materials. ACS Appl. Mater. Interfaces, 9(1), 1077-1085 (2016) [doi]
S. T. Birkhold, E. Zimmermann, T. Kollek, D. Wurmbrand, S. Polarz, L. Schmidt‐Mende. Impact of Crystal Surface on Photoexcited States in Organic–Inorganic Perovskites. Adv. Funct. Mater. 1604995, (2016) [doi]
E. Zimmermann, K. K. Wong, M. Müller, H. Hu, P. Ehrenreich, M. Kohlstädt, U. Würfel, S. Mastroianni, G. Mathiazhagan, A. Hinsch, T. P. Gujar, M. Thelakkat, T. Pfadler, L. Schmidt-Mende. Characterization of perovskite solar cells: Towards a reliable measurement protocol. APL Mater. 4(9), 091901 (2016) [doi].
P. Ehrenreich, S. T. Birkhold, E. Zimmermann, H. Hu, K. D. Kim, J. Weickert, T. Pfadler, L. Schmidt-Mende. H-aggregate analysis of P3HT thin films-Capability and limitation of photoluminescence and UV/Vis spectroscopy. Sci. Rep., 6, (2016) [doi].
K. D. Kim, T. Pfadler, E. Zimmermann, Y. Feng, J. A. Dorman, J. Weickert, L. Schmidt-Mende. Decoupling optical and electronic optimization of organic solar cells using high-performance temperature-stable TiO2/Ag/TiO2 electrodes. APL Mater. 3 (10), 106105, (2015) [doi]
T. Pfadler, M. Stärk, E. Zimmermann, M. Putnik, J. Boneberg, J. Weickert, L. Schmidt-Mende, A comparison of light-coupling into high and low index nanostructured photovoltaic films, APL Mater. 3, 066101 (2015) [doi]
E. Zimmermann, T. Pfadler, J. Kalb, J.A. Dorman, D. Sommer, G. Hahn, J. Weickert, L. Schmidt-Mende, Towards High-Efficiency Solution-Processed Planar Heterojunction Sb2S3 Solar Cells, Adv. Science (2015) [doi]
T. Kollek, D. Gruber, J. Gehring, E. Zimmermann, Prof. Dr. L. Schmidt-Mende, Prof. Dr. S. Polarz, Porous and Shape-Anisotropic Single Crystals of the Semiconductor Perovskite CH3NH3PbI3 from a Single-Source Precursor, Angewandte Chemie International Edition 53 (2014) [doi]
E. Zimmermann, P. Ehrenreich, T. Pfadler, J.A. Dorman, J. Weickert, L. Schmidt-Mende, Erroneous efficiency reports harm organic solar cell research, Nature Photon 8 669 (2014) [doi]
J. Weickert, E. Zimmermann, J.B. Reindl, T. Pfadler, J.A. Dorman, A. Petrozza, L. Schmidt-Mende, Synergistic Effects of Interfacial Modifiers Enhance Current and Voltage in Hybrid Solar Cells, APL Mater. 1 042109 (2013) [doi]