Job Offer from June 06, 2025
Project and activities
The aim of the project is to study the effect of the chemical structure of organic cations on the charge carrier transport in 2, 3-dimensional perovskites. Additionally role of the micro-, macrostructure and surface morphology on the charge trapping at the dielectric/ semiconductor and ion migration in thin hybrid (organic –inorganic) perovskite in field-effect transistors will be investigated.
What are we looking for?
A PhD position in the Field-Effect Transistor group led by Dr. Tomasz Marszalek in the Division of Molecular Electronics at the Max Planck Institute for Polymer Research in Mainz is available immediately. The selected candidate will conduct cutting edge research at the interface of physics, chemistry, materials science and engineering. In particular, the research is focused on the correlation between molecular self-assembly properties [1] and supramolecular structures of various cations [2] and their influence on the charge carrier transport in thin perovskite. The research areas include fundamental physical chemistry of solution deposited perovskites for electronic applications.[3] The candidate will gain fundamental knowledge in molecular electronics, self-assembly of nanostructures and X-ray diffraction methods.
Requirements
We are looking for a highly motivated student (also supported by DAAD, Marie-Curie or CSC Scholarship) with a background either in physics, chemistry, polymer science, materials science or related fields, to carry out the following tasks:
- processing of organic/inorganic semiconductor thin films,
- micro- and macrostructure characterization by atomic force microscopy and X-ray techniques,
- electrical characterization and evaluation of key processing/device parameters.
Send your cover letter, CV and two reference letters as a single PDF file to Dr. hab. Tomasz Marszalek (marszalek@mpip-mainz.mpg.de) as a single PDF file.
The cover letter must include the reasons why you want to join the group, a summary of your academic and research interests/achievements, and the earliest starting date. Please have the term “PhD_YourName” written in the subject line of your email.
[1] T. Marszalek, et al, „Grain Engineering for Improved Charge Carrier Transport in Two-Dimensional Lead-Free Perovskite Field-Effect Transistors”, Mater. Horiz., 2022, 9, 2633.
[2] T. Marszalek, et al „Odd−Even Alkyl Chain Effects on the Structure and Charge Carrier Transport of Two-Dimensional Sn-Based Perovskite Semiconductors“, J. Am. Chem. Soc. 2024, 146, 19128−19136
[3] T. Marszalek, et al, „Predictive modelling of structure formation in semiconductor films produced by meniscus-guided coating“, Nature Materials, 2021, 20, 68;