Ellipsometry of organic thin films

We investigate structural and optical properties of new organic materials in nm-thin films for applications in bio-interfaces and organic electronics.

With the help of spectroscopic ellipsometry we explore

  • swelling of polymer films
  • biomolecule adsorption
  • temperature dependent phase transitions
  • anisotropic optical properties of semiconducting films for OPV or OLED

To understand morphology development in organic thin films we further focus on interaction analysis by IR-spectroscopic techniques for ultra-thin films as well as the observation of crystalline textures by grazing-incidence wide angle X-ray scattering (GIWAXS).




  • May, 31st: Eva is invited to present the topic "Structural templating of organic semiconducting thin films to tune aggregation, molecular orientation, and optical properties" at the online E-MRS meeting in the Symposium N: Current trends in optical and X-ray metrology of advanced materials for nanoscale devices VI


  • July: Our paper on the morphology of ellagic acid thin films was published in J. Phys. Chem. C 2020, 124, 30, 16381–16390. Thanks a lot to all the collaborators of this complex work.
  • April / June: In-situ swelling experiments and refractive index determination of ambients were contributed to two Langmuir papers this year; one on surfaces preventing ice-adhesion (36, 16, 4465–4476) and the other on antifouling polymer brushes (36, 29, 8485–8493).
  • January: The paper of M. Magnozzi on plasmonic Au/polymer core/shell nanoparticles was accepted by ACS Applied Nano Materials 2020, 3, 1674-1682. We were glad to support the in-situ ellipsometric work.


  • December: The festive colloquium "30 years of polymer spectroscopy and ellipsometry at IPF Dresden" was hosted by the IPF to honor the contributions of Dr. Klaus-Jochen Eichhorn to the field at the advance of his retirement.
  • May: Together with Chris Sturm (University Leipzig) Eva won the Paul Drude Award, given to 1-2 young scientists for exceptional contributions to the development and application of spectroscopic ellipsometry every three years. 


  • 8/2019 - 1/2022: Technologies for efficient encapsulation of flexible electronic components (TFE4OPV), leading PI: Heliatek GmbH, PIs IPF: P. Uhlmann (NM), E. Bittrich (MSA), partners: Fraunhofer FEP
  • 8/2017 - 04/2020: Bioinspired molecular self-assembly of donor-acceptor networks in organic solar cells (InspirA), leading PI: Heliatek GmbH, PI IPF: P. Uhlmann (NM), partners: Friedrich-Schiller University Jena, Synthon Chemicals GmbH & Co. KG