The stoichiometric decomposition of hydrazine (N2H4) into N2 and H2 was observed to occur efficiently in a photocatalysis system of an organic p–n bilayer. The primary feature of the present system is that the entire visible-light energy spectrum can be utilised for N2H4 decomposition. Furthermore, this paper presents the first demonstration of H2 formation by the reducing power photogenerated at the n-type perylene derivative in an organic bilayer.
