AA2 – Materials, Light, Devices



Hybrid Models for the Electrothermal Behavior of Organic Semiconductor Devices

Project Heads

Annegret Glitzky, Matthias Liero

Project Members

Grigor Nika (WIAS)

Project Duration

01.01.2019 – 31.12.2020

Located at



We establish, study, and implement hybrid PDE models for the description of charge and heat flow in organic semiconductor devices. These models combine drift-diffusion and coarser thermistor systems for device subregions  with the goal to be as accurate as necessary but as computationally inexpensive as possible.

Selected Publications

  1. M. Bulíček, A. Glitzky, M. Liero: Thermistor systems of p(x)-Laplace-type with discontinuous exponents via entropy solutions DCDS-S, 10 (2017) pp. 697–713. WIAS Preprint 2247 (2016)
  2. H. D. Doan, A. Glitzky, M. Liero Drift-diffusion modeling, analysis and simulation of organic semiconductor devices, to appear in Z. Angew. Math. Phys., WIAS Preprint 2493 (2018)
  3. A. Fischer, Th. Koprucki, K. Gärtner, M. Tietze, J. Brückner, B. Lüssem, K. Leo, A. Glitzky, R. Scholz: Feel the heat: Nonlinear electrothermal feedback in Organic LEDs, Adv. Funct. Mater., 24, issue 22 (2014) pp. 3367–3374, WIAS Preprint 1839 (2013)
  4. A. Fischer, M. Pfalz, K. Vandewal, M. Liero, A. Glitzky, S. Lenk, S. Reineke: Full electrothermal OLED model including nonlinear self-heating effects, Phys. Rev. Applied, 10:014023, 2018.
  5. A. Glitzky, M. Liero: Instationary drift-diffusion problems with Gauss–Fermi statistics and field-dependent mobility for organic semiconductor devices, to appear in Comm. Math. Sci., WIAS Preprint 2523 (2018)
  6. M. P. Klinger, A. Fischer, H. Kleemann, K. Leo: Non-linear self-heating in organic transistors reaching high power densities, Scientific Reports, 8:9806, 2018.
  7. P. Kordt, J. J. M. van der Holst, M. Al Helwi, W. Kowalsky, F. May, A. Badinski, C. Lennartz, D. Andrienko: Modeling of organic light emitting diodes: From molecular to device properties Adv. Func. Mater., 25, pp. 1955–1971, 2015.
  8. M. Liero, J. Fuhrmann, A. Glitzky, Th. Koprucki, A. Fischer, S. Reineke: 3D electrothermal simulations of organic LEDs showing negative differential resistance, Opt. Quantum Electron., 49 (2017), pp. 330/1–330/8, DOI 10.1007/s11082-017-1167-4, WIAS Preprint 2420 (2017)
  9. M. Liero, Th. Koprucki, A. Fischer, R. Scholz, A. Glitzky: p-Laplace thermistor modeling of electrothermal feedback in organic semiconductor devices, Z. Angew. Math. Phys., 66 (2015) pp. 2957–2977, WIAS Preprint 2082 (2015)
  10. S. Ullbrich, A. Fischer, Z. Tang, J. Ávila, H. J. Bolink, S. Reineke, K. Vandewal: Electrothermal feedback and absorption-induced open-circuit-voltage turnover in solar cells, Phys. Rev. Applied, 9:051003, 2018.

Selected Pictures

Power density due to Joule self-heating in FET transistor

Please insert any kind of pictures (photos, diagramms, simulations, graphics) related to the project in the above right field (Image with Text), by choosing the green plus image on top of the text editor. (You will be directed to the media library where you can add new files.)
(We need pictures for a lot of purposes in different contexts, like posters, scientific reports, flyers, website,…
Please upload pictures that might be just nice to look at, illustrate, explain or summarize your work.)

As Title in the above form please add a copyright.

And please give a short description of the picture and the context in the above textbox.

Don’t forget to press the “Save changes” button at the bottom of the box.

If you want to add more pictures, please use the “clone”-button at the right top of the above grey box.