Open Access Version

Abstract:
With major improvements in device performance during the last decade, single-junction perovskite solar cells (PSCs) are already achieving power conversion efficiency comparable to silicon photovoltaics (PV) under standard test conditions and significantly surpassed it in tandem perovskite-silicon devices. As a result, research focus is shifting from enhancing the device efficiency towards improving its long-term stability. On the path to perovskite PV commercialization, understanding the long-term real-world behaviour is particularly important, not only with respect to device reliability but in all aspects of their outdoor operation. The focus of this doctoral dissertation is the evaluation of the performance and stability of perovskite-based solar cells under realistic operating conditions. To support the interpretation of outdoor monitoring data, indoor characterization techniques and advanced numerical modelling were employed. Characterization setups were developed or improved to provide detailed insights into the unique and often complex behaviour of perovskite-based solar cells.