Photosynthesis of sugars (carbohydrates) is a prime example of green and sustainable chemistry. Harvesting visible light for chemical reactions (photochemistry) avoids high temperatures and harsh reaction conditions while directly delivering energy to targeted chemical bonds for their reconstruction. This energy-efficient and operationally safe approach has led to numerous known and previously unattainable chemical transformations, enabling the synthesis of complex molecular architectures. Our division focuses on all aspects of photochemistry, including the development of photocatalysts and optoelectronic materials (transition metal complexes and organic dyes), new photo and electro-photochemical reactions, and their integration into flow chemistry for process intensification.