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Ph.D. Position (all genders welcome)

Stellen-ID: 3218 Einrichtung: Institute of Materials Physics Kontaktperson: Herr Marco Brankovic sekretariat @ ump.gwdg.de 0551 3925002 Besetzungsdatum: Zum nächstmöglichen Zeitpunkt Bewerbungsfrist: 12.02.2026

At the Georg-August-University Göttingen - Department of Physics, within the Institute of Materials Physics, there is a position to be filled:

Ph.D. Position (all genders welcome)

(Salary group 13 TV-L , 66 % (currently 26,27 h/week) for the first year
and 75 % (currently 29,85 h/week) for the remaining years)
-Gradient bandgap engineering in oxide perovskites for use in tandem solar cells- as part of the -FuturePV- -Grundlagen für Photovoltaik- Technologien der Zukunft- - Graduiertenkolleg - Lower Saxony Ministry of Science and Culture. The position can be started as soon as possible and is limited for 3 years.

Project
This subproject of -FuturePV- aims to develop tuneable oxide/oxynitride perovskites thin films for use in tandem solar cells as a charge-selective contact as well as a stable n-type absorber. The primary goal is to use the strategic approach of gradient bandgap engineering to modify the transparent conducting perovskite oxides to i) an oxynitride n-type semiconductor as well as ii) to a ferroelectric layered photo absorber with conducting layers. This project will be implemented within the groups of Prof. Jasnamol Palakkal and Prof. Christian Jooss.

Your tasks and duties:
You will grow epitaxial thin films of a transparent conducting perovskite oxide and its oxynitrides on various perovskite oxide substrates using a hybrid molecular beam epitaxy-pulsed laser deposition (MBE-PLD) technique. Careful study of the structure of this film by XRD, XPS, and TEM (collaboration with Prof. M Seibt / Dr. T. Meyer, University of Göttingen) and analysis of the electric transport and optical conductivity will allow to establish a comprehensive structure-property relationship of this new highly promising material class. Furthermore, the photovoltaic effect of niobite single junctions and its performance in a tandem cell will be investigated by systematic spectrally resolved and temperature- dependent photovoltaic measurements. Active collaboration with other project partners of -FuturePV- from various research institutes in Lower Saxony is expected.

Your profile:
- Recently obtained Master-s degree in physics or materials sciences - Communication skills in English are required. Good German language skills are desirable - You are a team worker and self-motivated to attain project goals Preferred Experiences (experiments, data collection, and analysis) - Thin film growth by pulsed laser deposition/ molecular beam epitaxy - Structural characterization of materials by XRD, XPS, etc.
- Optical and photovoltaic characterization The University of Göttingen is an equal opportunities employer and places particular emphasis on fostering career opportunities for women. Qualified women are, therefore, strongly encouraged to apply in fields in which they are underrepresented. The university has committed itself to being a family-friendly institution and supports its employees in balancing work and family life. The mission of the University is to employ a greater number of severely disabled persons. Applications from severely disabled persons with equivalent qualifications will be given preference.

Please send your application (motivation letter + CV) as a single PDF file via email to sekretariat @ ump.gwdg.de - by February 12th 2026 . Use -Future PV growth- as the subject line in your email.

Please note:
With submission of your application, you accept the processing of your applicant data in terms of data-protection law. Further information on the legal basis and data usage is provided in the ?url=https%3A%2F%2Funi-goettingen.de%2FGDPR&module=jobs&id=3186188" target="_blank" rel="nofollow"> ?url=https%3A%2F%2Funi-goettingen.de%2FGDPR&module=jobs&id=3186188" target="_blank" rel="nofollow">https://uni-goettingen.de/GDPR

Kontakt für Anzeigenschaltung
Abteilung Personaladministration und Personalentwicklung Goßlerstraße 5/7 37027 Göttingen (37073 Göttingen) Tel. + 49 (0) 551 39-24932
Fax + 49 (0) 551 39-25688

Georg-August-Universität Göttingen Wilhelmsplatz 1 (Aula) 37073 Göttingen Tel. 0551 39-0