Perovskites Quantum Dots based Broadband Detectors – from a quantum dot to a functional detector

Metal halide perovskites belong to a group of materials with remarkable properties for photovoltaic and photodetective applications due to their unique optoelectronic features and much-needed simple and low-cost fabrication process. Their narrowband emissions and tunable color properties make them ideal for solar cells, light-emitting diodes (LEDs), or spectrometers with the working spectral range in the NIR-VIS-UV. On the other hand, the high atomic number of perovskites semiconductors broadens their utilization in the X-ray region. Despite tremendous progress in bulk perovskite-based devices, their environmental instabilities and potential structural defect formation during multiple bending operations discriminate them for use in flexible devices. Recently, perovskite quantum dots (PeQDs) have emerged as the zero-dimensional variant of perovskites, offering desired characteristics of mechanical flexibility and endurance without performance loss. Moreover, the combination of the low cost, solution processability, and excellent photovoltaic performance render PeQDs a great alternative to standard semiconductors, especially in the field of sensitive and bendable broadband detectors. This project connects five different research groups and creates a platform for sharing their existing expertise in PeQDs synthesis, preparation and characterization of PeQDs-based photovoltaic and photodetective structures. The exchange of existing experience will broaden the current knowledge and lead to an innovative, flexible PeQDs-based detector with extended sensitivity in the X-ray region.