Phd Position

vor 2 Monaten


Duesseldorf, Deutschland Forschungszentrum Jülich Vollzeit

The Institute for Energy and Climate Research 5 - Photovoltaics (IEK-5) performs research on various aspects of photovoltaic materials and devices, including the emerging class of perovskite solar cells. Perovskite solar cells are a promising solar cell technology that enables printable, flexible and lightweight solar cells. To better understand and quantify efficiency losses, researchers use a variety of characterization methods that include various types of spectroscopy methods. Within this project, we will specifically studied the transient photoluminescence method and try to improve data analysis of photoluminescence transients on perovskite layers, layer stacks and complete devices using machine learning techniques. Our approach is based on a variant of Bayesian inference, where we use trained neural networks (supervised learning) to rapidly compare the experimental data with the output of a numerical model.

**Your Job**:

- Transient photoluminescence measurements of halide perovskite films, layer stacks and devices
- Simulations of transient photoluminescence and generation of training data
- Training of neural networks using the numerical simulations
- Calculating the likelihood of material parameters correctly describing experimental results
- Correlating material parameters with process conditions of sample preparation
- Deriving insights for film and device fabrication based on the above described workflow

**Your Profile**:

- Masters degree in physics, materials science, physical chemistry, electrical engineering and related disciplines
- Very good grades in the masters and bachelors degrees are mandatory
- Knowledge of semiconductor and solar cell physics is required
Knowledge of solar cell characterization methods and/or drift-diffusion simulations is useful but not mandatory

**Our Offer**:
We work on highly innovative topics and offer you the opportunity to actively shape the change We offer you:

- A large research campus with green spaces, offering the best possible means for networking with colleagues and pursuing sports alongside work
- An interesting, future-oriented and socially relevant topic for your thesis
- Interdisciplinary collaboration on projects in an international, dedicated and supportive team
- Qualified supervision by academic colleagues
- Independent preparation and implementation of the assigned tasks
- Ideal conditions for balancing work and private life, as well as a family-friend corporate policy
- Flexible working hours

Targeted services for international employees, e.g. through our International Advisory Service



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