Post-Docs

Dr. Guangzheng Zuo

Humboldt Fellow

 

Campus Golm
2.28.2.030

" Dr. Guangzheng Zuo received his PhD degree at Linköping University (Sweden) under the supervision of Professor Martijn Kemerink in 2018. At present he works in the Soft Matter Physics and Optoelectronics Group at the University of Potsdam, sponsored by Alexander von Humboldt Foundation. His current research interests focus on charge transport in organic electronic materials, especially in the field of organic solar cells and organic thermoelectrics. "

Dr. Joachim Vollbrecht

Feodor Lynen Return Fellow

 

Campus Golm
2.28.1.009

"My research focuses on understanding the recombination and extraction dynamics of high performing organic solar cells. Techniques such as impedance spectroscopy yield valuable information on the ongoing processes within the bulk-heterojunctions of organic solar cells, particularly because they offer ways to determine the charge carrier density of “real” solar cells under realistic operating conditions."

Sreelakshmi Chandrabose, Ph.D.

Postdoc

 

Campus Golm
2.28.2.031

"My research interest is mainly focused on understanding the charge transfer mechanisms in TMDC/organic hybrid interfaces using time resolved optical spectroscopic technique. TMDCs differ from traditional inorganic semiconductors in that they exhibit a significant exciton binding energy and a strong absorption in the visible range, reminding of organic semiconductors (OSCs). Thus,TMDCs combined with organic non-fullerene acceptors form new and exciting hybrid systems for fundamental studies with potential applications in opto-electronic devices. "

Dr. Felix Lang

Feodor Lynen Return Fellow

 

Campus Golm
2.28.2.032

" Felix is a Feodor Lynen Research Fellow from the Alexander von Humboldt Foundation, focusing on the investigation and understanding of radiation-induced defects in halide perovskites. He received his Ph.D. in physics from the Technical University Berlin, studying the stability and degradation of perovskite solar cells, which he conducted at the Helmholtz-Zentrum Berlin. He followed up as a postdoctoral researcher within the group of Prof. Sam Stranks at the Cavendish Laboratory of the University of Cambridge, where he tested and developed next-generation perovskite tandem photovoltaics for space photovoltaics."

Jonathan Warby Ph.D.

Postdoc

 

Campus Golm
2.28.1.080

“I am originally from the UK and I am a postdoc in the group working on perovskite silicon tandems. I completed my Bachelor and Masters degrees at Durham University in Chemistry. My masters thesis was on the synthesis of luminescent pH probes for cell imaging. I conducted my PhD investigating stability of perovskite LEDs at the University of Oxford under the supervision of Prof. Henry Snaith. Outside of work I enjoy baking bread, brewing beer and playing basketball. “

PhD Students

Lorena Perdigon, M.Sc.

PhD Student

 

Campus Golm
2.28.1.080

"Organic solar cells are experiencing a second golden age thanks to the development of novel non-fullerene acceptors (NFAs). My research interest lies in understanding what makes NFAs so especial when blended with common polymer donors. Thereby, I focus on learning how free charge generation and recombination occur in bulk heterojunctions containing NFAs, and how these processes relate to energetic order in the blends. Particularly, I employ optoelectronic techniques such as time-delayed collection field and bias-assisted charge extraction. Moreover, I am interested in the emission properties of devices and films and I apply a combination of photoluminescence and electroluminescence measurements to relate them to the maximum achievable open-circuit voltage. "

Meysam Raoufi

PhD Student

 

Campus Golm
2.28.2.031

"My research aim is to study the energetics and transfer of charge carriers, across an electronically hybrid interface. Tuning the energetics of the inorganic surface by applying self-assembled monolayers, mixing molecules with different electrostatic dipoles, incorporating photo-switchable molecules which results in control over the energetics at the organic/inorganic interface."

Francisco Peña-Camargo

PhD Student

 

Campus Golm
2.28.2.034

"Both the deployment and scale-up of perovskite solar cells imply a thorough understanding of the fundamental physical phenomena underlying light absorption, charge separation, carrier transport and energy generation of photovoltaic devices at a laboratory-scale. To achieve this goal, my research focuses on the development and characterisation of thin-film partial stacks and working devices by means of several techniques, namely, electroluminescence and photoluminescence spectroscopy, transient  photovoltage and photocurrent measurements. These allow me to assess their loss-mechanisms and recombination channels, and thereby finding the path to the optimisation towards the thermodynamic limits. Of my particular interest are the wide-bandgap single-junction perovskite solar cells with organic transport layers intended for tandem applications."

Emilio Gutierrez-Partida

PhD Student

 

Campus Golm
2.28.2.032

"I am interested in the various recombination processes that occur in perovskite solar cells and I try to understand the main performance limitations of these devices. Attacking these problems from a material science point of view is my main focus but I am also interested in degradation mechanism, tandem solar cells and upscaling which are key points for a commercial success of perovskite solar cells. "

Max Grischek

PhD Student

 

Campus Golm
2.28.2.032

"My research is focused on all-inorganic perovskites for highly efficient tandem solar cells. To this end, I make use of photoluminescence measurement techniques to determine the efficiency potential of perovskite films and to conduct detailed loss analysis in comparison to organic-inorganic perovskites. My main affiliation is with the Young Investigator Group Perovskite Tandem Solar Cells at Helmholtz-Zentrum Berlin."

Jarla Thiesbrummel

PhD Student Visitor from Oxford

 

Campus Golm
2.28.2.032

My research focusses on trying to get a better physical understanding of different perovskite systems. Currently, I am mainly looking into the effect of mobile ions and doping on device performance. In order to do this, I use a combination of experimental work and simulations.

My main affiliation is with the group of Prof. Snaith at the Oxford University, but I am currently visiting the PotsdamPero group.

M.Sc Students

B.Sc. Students

Jonas Diekmann

Student Assistant

 

Campus Golm
2.28.2.032

Karol Peters

Student Assistant

 

Campus Golm
2.28.2.030

Fabian Rohne

Student Assistant

 

Campus Golm
2.28.2.030