Master Thesis

vor 6 Monaten


Duesseldorf, Deutschland Forschungszentrum Jülich Vollzeit

Two-terminal perovskite-silicon tandem solar cells are showing great promise to become the dominant commercial photovoltaic technology in the future, with the highest laboratory efficiency being 33.9% for a 1 cm x cm device. Further development in the efficiency of these devices is limited by the low fill factor, due to resistive losses arising from the low mobilities of the transport layers of the perovskite cell and other related interlayers. The magnitude and mechanisms of these losses need to be identified accurately in order to determine suitable material modifications. This project will therefore focus on frequency-domain small perturbation measurements of two-terminal perovskite-silicon tandem solar cells. These measurements will exploit the fact that the measured response is limited by a different subcell depending upon the nature of the DC illumination, to selectively probe the perovskite solar cell and shed light on the mechanisms dominating its performance losses.

**Your Job**:

- Analysis of the experimental data
- Numerical simulations of the frequency-dependent measurements
- Determination of resistive and non-radiative recombination losses due to the different layers and their interfaces

**Your Profile**:

- Bachelor Degree in physics, material science, electrical engineering, chemistry or related fields
- Know-How in the physics of semiconductors and ideally in spectroscopy of semiconductors
- Very good grades in bachelor and master courses
- Very good spoken and written English or German
- Enthusiasm for science and experimental work

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

- A large research campus in the countryside, which offers excellent opportunities for networking with colleagues and for sporting activities in addition to work
- An interesting and socially relevant topic for your thesis with a future-oriented theme.
- Interdisciplinary collaboration on projects in an international, committed and collegial team
- Excellent scientific equipment and the latest technology
- Qualified supervision by scientific colleagues
- Independent preparation and execution of assigned tasks
Flexible working hours, adequate remuneration and flexible work (location) arrangements, e.g. remote work



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