Bosserez, TomRonge, JanVan Humbeec, JanHaussener, SophiaMartens, Johan2015-04-162015-04-162015-04-16201510.2516/ogst/2015015https://infoscience.epfl.ch/handle/20.500.14299/113388WOS:000366723000008Solar driven water splitting can be achieved by coupling electrolyzers with PhotoVoltaics (PV). Integration of both functions in a compact PhotoElectroChemical (PEC) cell is an attractive option but presents significant scientific challenges. In this work, the design of single- and dualcompartment PEC cells for research purposes is discussed. The fabrication of separator-electrode assemblies is an important aspect, and upscaling of these architectures even to centimeter scale is not trivial. The layout of a new dual-compartment compact PEC cell with in-situ monitoring of pH, temperatures, and oxygen and hydrogen evolution for research purposes is presented. Finally, a prospect of future PEC cells for practical applications is presented.text::journal::journal article::research article