Overall Surfacial Antenna Immobilization Boosts Carrier Migration for Visible Light Superoxide Generation

The artificial photosynthesis efficiency is restricted for the covering of introduced light-absorbing antennas, where they could generally be immobilized at specific surface sites of semiconductors. Here, we highlight the emerging π-π interaction strategies in realizing overall surfacial antenna immobilization onto semiconductor supports, during which large-scale built-in electric fields are established, strongly driving photocarrier migration to catalytic centers accompanied with enhanced light absorption. By taking porphyrin and ZIF-8 as a prototype, both theoretical calculation and experimental results show that the photocatalytic systems with overall surfacial antennas could absorb broader visible light and form abundant photocarrier transport pathways from porphyrin to ZIF-8, boosting the generation of superoxide and organic synthesis efficiency. This work develops a universal strategy for design of efficient artificial photosynthetic systems.