The University of Groningen is offering a PhD position as part of the Marie Sklodowska-Curie Doctoral Network (MSCA-DN) MENTOR initiative. This research aims to develop highly efficient and stable Sn halide PSK-based indoor photovoltaics (IPVs). The candidate will prepare thin films, characterize their structure, and explore the role of additives in improving device performance and stability. This position offers the opportunity to collaborate with international institutions under the supervision of Professor Maria Antonietta Loi.