Phenoxazine-based small molecule heterojunction nanoparticles for photocatalytic hydrogen production.

A phenoxazine-based small organic molecular donor POZ-M is designed and synthesized to prepare organic heterojunction nanoparticles (NPs) with a small molecular acceptor ITIC for photocatalytic hydrogen production, giving a reaction rate of up to 63 mmol g h. A beneficial molecular design strategy highlights the role of miscibility between POZ-M and ITIC, which is necessary to achieve satisfactory charge separation at the donor/acceptor interface.