Postdoc (f/m/d) Development of All-Perovskite Triple Junction Solar Cells

Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (HZB); Berlin; Remote; EUR 60,000 - 70,000; Full time

Benefits offered by this job

Flexible hours

Remote work option

30 days vacation

TVöD Bund pay and pensions

Work & Life advisory

Job summary

Helmholtz-Zentrum Berlin (HZB) seeks a postdoctoral researcher to advance all-perovskite triple-junction solar cells. You will work in an international, multidisciplinary team on material properties, device configurations, and stability, contributing to publications and new project proposals.

The role emphasizes hands-on processing, device characterization, and coordination with partners, within a fixed-term 24-month contract.

Qualifications

• PhD completed in materials science, chemistry, physics, engineering or related field.
• In-depth knowledge of semiconductor tech and physics of solar cells.
• Hands-on processing of thin films and perovskite devices.
• Excellent analytical, communication and organizational skills.

Responsibilities

• Manufacturing high-efficiency perovskite-based triple cells.
• Characterising devices, analysing losses and simulating cells.
• Processing steps in device fabrication.
• Coordinating development work with HZB and partners.
• Publishing results and writing project proposals.

Skills

Semiconductor tech

Physics of solar cells

Thin-film processing

Analytical skills

Communication skills

Team spirit

Enthusiasm for solar cells

Education

PhD in relevant field

Job description

Postdoc (f/m/d) Development of All-Perovskite Triple Junction Solar Cells

Reference No.: SE 2026/14

Helmholtz-Zentrum Berlin (HZB) conducts research on energy materials and develops next-generation photovoltaic technologies from materials to devices. The Department of Perovskite Tandem Solar Cells develops metal-halide perovskite solar cells and has achieved several world records for perovskite-silicon and perovskite-CIGS tandem solar cells. Our current research focuses on advancing all-perovskite multi-junction solar cells by investigating material properties and charge-carrier dynamics, developing new device configurations, improving operational stability, and scaling up device areas. In this postdoctoral position, you will contribute to the development of perovskite-based triple-junction solar cells. We are looking for a highly motivated and experienced scientist with expertise in perovskite solar cells to join our international and multidisciplinary team.

Your Tasks

• Manufacturing high-efficiency perovskite-based triple cells
• Characterising devices, analysing experimental losses, and simulating single and tandem solar cells
• Processing individual steps in device fabrication
• Coordinating development work and experiments in cooperation with HZB, other institutes, and industrial partners
• Publishing scientific results and writing project proposals for the acquisition of new third-party funded projects

Your Profile

• Completed doctoral degree in materials science, chemistry, physics, engineering or a related field
• In-depth knowledge of semiconductor technology and the physics of solar cells
• Hands‑on experience in processing thin films and solar cells in the topic of perovskite technology
• Excellent analytical skills
• Excellent communication and organizational skills
• Enthusiasm about solar cells with drive for efficiency and team spirit

Your Benefits

• The opportunity to contribute to the development of innovative materials and technological solutions for a climate-neutral future in cooperation with leading international researchers
• Flexible working hours and the possibility to work remotely
• Career-enhancing networking opportunities, individual guidance, and support through our Graduate Center and Postdoc Office
• 30 days of vacation per year and attractive remuneration according to the collective agreement for the public sector (TVöD Bund), plus company pension plan
• Advisory services on family and career matters through our Office for Work & Life
• Subsidy for the public transport “Deutschlandticket Job” and exclusive employee discounts
• Relocation support from non-EU countries
• German and English courses for all proficiency levels

Fixed term contract for 24 months.

The salary is based on the Collective Agreement for the German Public Service (TVöD-Bund).

We very much want our workplace to be diverse, and welcome applications from people with different backgrounds. It is our mission to promote equal opportunities and to improve women’s representation in the workforce. We are therefore very interested in receiving applications from women. Where the qualifications are met, we will give preference to people with disabilities.

Climate change poses serious challenges to the whole world. At Helmholtz-Zentrum Berlin, we are researching materials for a climate-neutral future. 1400 employees from all over the world are working together at HZB towards this goal. Join us, and help us achieve it! Learn more about HZB on our website.

CONTACT

Silvia Mariotti