ABSTRACT
Photoelectrochemically driven electrosynthesis would be developed for versatile applications regarding organic synthesis and energy production. This chapter introduces the advantages of photoirradiation in electrosynthesis. Light-assisted electrosynthesis has been developed for indirect electrolysis using a mediator. Transition metal complexes can be excellent catalysts for electroorganic synthesis due to efficient electron transfer property with an electrode. Light-assisted electrosynthesis was also carried out using a vitamin B12 derivative as the mediator. Electroorganic synthesis is especially recognized as a green process in synthetic organic chemistry since the redox process of a substrate occurs due to an electric current without any chemical reagent and waste after the reaction. Photoelectrochemistry is progressing more than ever due to its expanding advantage as a clean and economical process as well as producing new photoorganic reactions. One of the future directions of photoelectrochemistry is the smart design of the illuminated cell. Efficient photoirradiation of an electrolyte solution is important for increasing the reaction yield.
