Photovoltaic Partner Selection for High-Efficiency Photovoltaic-Electrolytic Water Splitting Systems: Brief Review and Perspective

Photovoltaic-electrolysis water splitting (PV-EWS) is the most promising approach for high solar-to-hydrogen (STH) efficiency. The present PV-EWS systems achieve highest STH performance by using a III-V triple-junction configuration, which, however, involves complex and expensive manufacture process. Therefore, in this work, we demonstrate III–V double junction device that can be used as an alternative to conversion efficiency of systems. We estimate via coupling world-recorded multi-junction photovoltaic (PV) our experimented cell configurations with EWS system. results show junction, owing good trade-off between loss compensation, exhibits higher than triple-junction. Furthermore, strategies improving low-cost system are discussed.