PhD Student (f/m/d) for Layer and Interface Formation of Defect-Tolerant Functional Materials U[...]

PhD Student (f/m/d) for Layer and Interface Formation of Defect-Tolerant Functional Materials Using X-ray Spectroscopy

Reference No.: SE 2025/23

In the Department Interface Design, we study the structure-function relationship between the chemical and electronic surface and interface properties of thin-film layer stacks and the performance of energy conversion materials and devices (e.g., solar cells, batteries, etc.). We are responsible for UHV-based spectroscopy (XAS, XPS, XES, RIXS, HAXPES) in the Energy Materials In-situ Laboratory Berlin (EMIL). Additionally, we operate a lab-based ultra-high vacuum (UHV) surface analysis tool and the HiKE (HAXPES) endstation at BESSY II.

Under the umbrella of the Collaborative Research Center ChemPrint at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), we will characterize the layer and heterostructure formation of photovoltaic devices based on antimony chalcogenide thin films. The doctoral researchers will focus on tasks including collaboration with FAU on atomic layer deposition (ALD) synthesis and advanced material characterization. The department\’s expertise lies in material and interface characterization using advanced X-ray spectroscopic methods.

The doctoral researchers will be based at HZB in Berlin-Adlershof, with occasional travel to FAU and regular remote participation in ChemPrint activities.

Your Tasks

• Characterize the chemical and electronic structures of antimony chalcogenide films and layer stacks using X-ray and electron spectroscopic methods.
• Assist in constructing a research-scale Atomic Layer Deposition reactor at HZB as part of the project.
• Use X-ray probes to analyze the surfaces, interfaces, and material volume to gain insights for optimization.
• Support the development of spectroscopic methods for characterizing antimony chalcogenide materials and interfaces.
• Write beamtime applications and organize synchrotron measurement campaigns.
• Coordinate sample exchange and findings with project partners, especially within ChemPrint.
• Present and publish results at conferences, workshops, and in peer-reviewed journals.

Your Profile

• Motivated MSc graduate in physics, (physical) chemistry, or material science.
• Experience with ultrahigh vacuum equipment and X-ray spectroscopies is required.
• Background in photovoltaic materials is advantageous but not mandatory; enthusiasm is essential.
• Ability to communicate and collaborate independently with project partners.
• Excellent English skills; German skills are a plus. Intercultural competence and teamwork skills are necessary.

Your Benefits

• Work at EMIL in Berlin-Adlershof at the BESSY II synchrotron source.
• Part of the Helmholtz Association, contributing to global challenges.
• Contribute to innovative materials for a climate-neutral future.
• Diversity and sustainability focus in the work environment.
• Networking, mentoring, and support from HZB\’s graduate programs.
• Remuneration according to TVöD Bund, with 30 days holiday/year.
• Additional benefits: pension plan, transport subsidy, sports programs.
• Flexible working arrangements and work-life balance support.

This is a fixed-term contract for 48 months, with salary based on the Public Service Wage Agreement (TVöD-Bund).

How to apply

Please include the following documents in your application:

• A motivation letter explaining your research interests and reasons for applying.
• Curriculum vitae with career stages, publications, research experience, and references.
• Certificates and grades.

Apply via our system by 09.09.2025. We cannot consider applications received by other means due to data protection regulations.

We value diversity and encourage applications from people with different backgrounds, especially women and persons with disabilities.

For the German version, click here: German Version.

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CONTACT

Prof. Dr.-Ing. Marcus Bär

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