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

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 field of perovskite technology * Excellent analytical skills * Excellent communication and organizational skills * Enthusiasm for solar cells, with drive for efficiency and team spirit Your Benefits At Helmholtz-Zentrum Berlin, you benefit from state-of-the-art research infrastructure, an international and collaborative working environment, and a wide range of opportunities for your professional development: * 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 a 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). How to apply We look forward to receiving your application via our application management system by05.11.2026. For reasons of data protection regulations, we are unfortunately unable to consider applications that reach us by any other means (such as email or mail) in the application process. 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. Helmholtz-Zentrum Berlin für Materialien und Energie GmbH Hahn-Meitner-Platz 1, 14109 Berlin www.helmholtz-berlin.de ➜ APPLY HERE! 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 +49 30 8062-14690 silvia.mariotti@helmholtz-berlin.de IMPRINT &DATA PROTECTION