Sparc Hydrogen believes photocatalytic water splitting can deliver cost and flexibility advantages over electrolysis because of its lowered infrastructure and electricity requirements. The company ...

They claim that it can be used as a wide-gap to cell in tandem devices or for water-splitting hydrogen generation. CuGaSe 2 has band-gap energy of 1.7 eV. It has been used in solar cells with ...

Photocatalytic water splitting offers a sustainable method for producing green hydrogen but faces challenges due to inefficient materials and systems. Here, the authors report a design for a ...