This volume offers a comprehensive introduction to perovskite materials and their optoelectronic properties, along with comparisons to other state-of-the-art semiconductors developed for high-performance optoelectronic devices. It also presents cutting-edge research on the use of machine learning to accelerate the development of high-quality perovskite materials and devices. The volume provides in-depth coverage of advanced applications—including LEDs, photodetectors, X-ray detectors, lasers, and photocatalysts—exploring their working principles, recent progress, current challenges, and future prospects. - Thorough introduction of the perovskite material: structure and optoelectronic properties - Machine learning in enhancing perovskite material design - Perovskite based optoelectronic devices: fundamental mechanisms, in-depth review on recent progress, existing challenges, future prospects