Research assistant (f/m/d)

In our group, we are preparing and analysing nanowires (NWs) from III-V semiconductors in various device structures for energy conversion and other high-performance applications. For the NW analysis, we are using various materials science characterization methods including a dedicated 4-tip scanning tunnelling microscope. In this project funded by the German Research Foundation (DFG), we are addressing III-nitride resonant tunnel diodes in NW core-shell structures for improved performance in the THz range together with our project partners at the University Duisburg-Essen. Key challenges are the crystal quality of the heterostructures and internal polarization fields.

Your tasks

Your job tasks includes the following responsibilities:

• Analysis and evaluation of III-V semiconductor structures grown by metal organic chemical vapour deposition (MOCVD), in particular, resonant tunnelling diodes.
• Electrical characterization of the structures using a 4-tip scanning tunnelling microscope and electron beam-induced current measurements with regard to charge carrier transport paths.
• Materials science analysis of nanowire morphology, investigation of the various structural areas, in particular local composition differences, using scanning electron microscopy and energy-dispersive X-ray spectroscopy.
• Technical support for the department in teaching, e.g. topic-relevant theses.
• Publication and presentation of results at national and international conferences and in journals.

Your profile

For being part of the selection process is needed:

• A completed university degree (Master's or Diploma) with above-average grades in a natural science, materials science, or engineering subject (e.g. physics, chemistry, renewable energy technology, materials science, or electrical engineering)

Following competences are desirable:

In-depth knowledge of Semiconductor physics mandatoryKnowledge of Natural sciences (physics, chemistry), materials science, and/or engineering in semiconductor preparationAbility to work independently and responsibly in an innovative, interdisciplinary team and research environmentLanguage (English B2 level, German B2 level) skills

Please provide evidence of the qualifications required for the job by certificates and references.

The job is not suitable for part-time employment.

The interviews will be placed in calender week 14/2026 and 15/2026.

What we offer you:

• attractive remuneration according to collective agreement (as per TV-L) incl. granting of a special annual payment
• vacation entitlement of 30 days in the calendar year and additional days off on 24 / 31 December
• family-friendly, flexible working time model
• VBL - pension scheme in the public sector
• wide range of individual training opportunities
• extensive health and sports programs
• respectful working environment at a renowned university