Abstract
Solar cells are one of the most promising options for environmentally clean electricity production. Their role in the future energy mix depends on further reduction in system costs, and therein the device efficiency is of key importance. Organic halide perovskites seem to be the right candidates for next-generation photovoltaics, either in tandem with crystalline silicon solar cells or as a cheap and flexible thin-film alternative. A high radiative recombination rate stands behind the success of halide perovskites in photovoltaics. But it may be used in many other optoelectronic applications, for example, detectors and LEDs.
Within this project, we aim to find ways to enhance radiative recombination in halide perovskite thin films. To do this, it is necessary to localize defects using microscopic techniques and understand their passivation. For this purpose, we will perform an in-situ luminescence characterization of the most promising passivation processes. This strategy will lead to an improved open-circuit voltage of final solar cells.