Doctoral Researchers

A4: Ronja Thümmler

E-Mail: /
Phone: +49 351 4658 583
Office: Leibniz-Institut für Polymerforschung Dresden e. V.,
Room: L110

After completing my Master's studies in Chemistry, I knew that I wanted to work on an application-oriented and interdisciplinary topic for my PhD. Joining the RTG allowed me not only to reach that goal, but also to work in an international, collaborative community. Within my project, I will work on synthesis, characterization and device integration of novel organic semiconductors, aiming for materials of suitable conductivity that also show flexibility and self-healing properties due to hydrogen-bonding.

Project Topic: Defined conjugated polymer nanostructures through self-assembly

Supervisors: Brigitte Voit, Franziska Lissel, Larysa Baraban

Molecular Organic Semiconductors (OSCs) present a promising alternative to established inorganic materials due to the accessibility of diverse, well-defined and highly regular structures composed of abundant elements. Additionally exhibiting inexpensive solution-processability, OSCs allow the utilization of high-throughput techniques, such as printing, for device fabrication.

The high (electro-)chemical stability and suitable charge-carrier mobilities of oligothiophenes, in combination with facile functionalization routes, render them a convenient class for the exploration and establishment of structure-property relationships.

The aim of this work is the synthesis of dynamic supramolecular structures based on linear all-α-oligothiophenes with varying backbone lengths. Incorporating multiple hydrogen bonding sites on the oligomers allows building crosslinked and responsive networks, and the weak bonding character can potentially enhance resilience towards mechanical deformation as well as conclusively enabling self-healing properties. As minimal changes in the material’s molecular weight upon the introduction of functional groups are favorable in order to maximize the thiophene’s gravimetric capacity, the choice of H-bonding motifs, each composed of donor (D) and acceptor (A) sections, is guided by limiting their size.

05/2021 – 12/2021

Master's thesis

TU Dresden, Chair of Inorganic Chemistry I

  • Thesis: Gas separation utilizing metal-organic frameworks
10/2019 – 12/2021

Master of Science in Chemistry

Technische Universität Dresden

  • focus: inorganic, physical and material chemistry
  • research internship project on Metal-Organic frameworks
10/2016 – 09/2019

Bachelor of Science in Chemistry

Technische Universität Dresden


  1. Thümmler, R., Voit, B., Lissel, F., Tuning Hydrogen-Bond Derived Supramolecular Assembly in Bifunctional α-Oligothiophenes.
    epf European Polymer Congress, 2022, Prague - Poster presentation.