Growth of low-dimensional perovskite nanomaterials for optoelectronic applications

Metal halide perovskites have received substantial research attention due to their impressively high performance in photovoltaics, but their polycrystalline films have crucial limitations, which hamper perovskite-based devices toward commercialization. Therefore, low-dimensional perovskites with unique properties have been explored to be promising materials for future applications. This thesis studied the synthesis, nanofabrication and optoelectronic applications of the low-dimensional perovskites. In particular, two-dimensional perovskites were fabricated into photodiodes, which are further demonstrated as broadband photodetectors. Furthermore, a high-performance flexible X-ray detector was fabricated by inkjet printing, suggesting that perovskites have great potential for the next generation X-ray detecting and imaging technologies.