Thesis surface Passivation for The Optimization of

The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg is the largest solar research institute in Europe. Our approximately1,400 employees work towards a sustainable, economical, safe and socially just energy supply system based on renewable energies. We contribute to this with our research focus on energy supply, energy distribution, energy storage and energy use. Through outstanding research results, successful industrial projects, company spin-offs and global cooperation, we are shaping the sustainable transformation of the energy system. Would you like to play an active role in shaping the energy transition and write your thesis in this area? With us you will find the experts and the environment to realize these goals. For our "Perovskite thin-film photovoltaics" team, we are looking for a student assistant with the opportunity to write a Master's thesis at the earliest possible date. The aim of the master's thesis is to investigate how surface passivation and thus an increase in efficiency of perovskite solar cells can be achieved by modifying the photoabsorbing layer. The work is directly linked to the exciting research field of perovskite-perovskite tandem solar cells. We offer you the opportunity to contribute to innovative research aimed at improving the efficiency, stability and scalability of perovskite solar cells - a key technology in the sustainable energy world. You will work with a diverse, international team committed to pushing the boundaries of photovoltaic research. **What you will do** - Your tasks will include examining the deposited layers using optical methods such as photoluminescence spectroscopy, photoluminescence quantum yield and electron microscopy, which will provide you with information on the quality of the absorber layer and its passivation. - You use optimized layers for the production and optimization of perovskite solar cells with low and high bandgaps. - In addition, you will investigate the interaction of the perovskite layers with charge transport layers, which must be energetically adapted to the absorber for the solar cell to function optimally. - You will test the performance of the solar cells produced using optoelectronic methods, e.g. current-voltage measurements and spectral sensitivity measurements. - You interpret your measurement results in an understandable way, summarize them in a comprehensible manner and draw conclusions for your next experiments. - In the course of your work, you will present your results in internal meetings and exchange scientific information with national and international project partners. **What you bring to the table** - You are studying physics, chemistry, materials science or a comparable field. - You have a strong analytical mind and a talent for experimental work. - You work in a structured and conscientious manner and are motivated to critically analyze your results. - Ideally, you already have basic knowledge of solar cell physics. - It is important for you to be part of your team, but you also plan and complete tasks independently and with high quality. - You have a very good command of English. **What you can expect** - You will work at one of the most popular employers on an equal footing with the best. - Open-minded colleagues are happy to welcome new talent into their ranks. - We offer flexible working time models and give you the opportunity to work from home at times. - We also foster a cooperative working atmosphere and open communication. - We value equal opportunities and make room for diversity. - You can take part in attractive sports and health programs and after-work activities. The remuneration depends on the degree of your university education. We will be happy to answer any questions you may have about this position: Dr. Markus Kohlstädt +49 761 203-96796 Fraunhofer Institute for Solar Energy Systems ISE Requisition Number: 72715 Application Deadline: