Symposia / topic A1 Beyond Efficiency: Perovskite Optoelectronics for Scalable and Stable Devices A2 Multijunction Halide Perovskite Solar Cells: Materials, Device Design, and Advanced Characterization A3 Single-Crystal Halide Perovskites: From Growth to Device Applications A4 Pathways to Stable Metal Halide Perovskites A5 Interface Engineering, Optical Strategies and Multijunction Designs in Perovskite Photovoltaics and Optoelectronics A6 Halide Perovskites Beyond the Ideal Crystal: Chemistry, Interfaces, and Functional Heterostructures B1 Fundamentals and Emerging Phenomena in Halide Perovskites B2 Ionic Dynamics and Transport Phenomena in Metal Halide Perovskites B3 Chirality in Optoelectronics: Approaches, Challenges, and Opportunities B4 Fundamental Understanding of Halide Perovskite Materials, Interfaces and Devices B5 Structure and Dynamics in Halide Perovskites: From Theory and Spectroscopy to Applications C1 Multiscale Insights into Solid–Liquid Interfaces for Sustainable Energy Technologies C2 Exsolution in Sustainable Catalyst Design C3 Current bottlenecks of the industrial application of CO2 electrolysis D1 Probing ligands on nanocrystals D2 Functional Materials for Emerging Photovoltaics: from Everyday Integration to Extreme Environments D3 Next-Generation Processing Strategies for Emerging Semiconductor Technologies D4 Iontronics D5 - Spintronic Nanodevices for Unconventional Computing D6 Automated & AI-Accelerated Discovery of Sustainable Materials D7 High Throughput Electrode Synthesis and Manufacturing E1 Solar-driven systems for renewable fuels and chemical generation; Towards viable Solar fuels technology E2 Solar fuels and chemicals: from devices to discoveries in unconventional environments E3 Photonics in Energy Conversion Materials and Devices E4 Advances and Innovations in (Photo)Electrochemical CO2 and N2 Conversion and Water Splitting E5 From Materials Innovation to Sustainable Photo-Assisted Electrochemical Systems Plenary Session