부산대학교 도서관

Summary: Ocean solar energy is important for underwater devices. However, the intermittent irradiation and the requirements of many accompanying functional parts make the related devices huge and expensive. It is still a challenge to realize an all-in-one solar-energy conversion platform that can provide a continuous power supply, seawater sensing, and environment restoration simultaneously. Here, we demonstrate an algae-inspired strategy to achieve a multiple-function, ocean solar-energy conversion chain. Specifically, Prussian blue analogs (PBAs) of coordination polymers serve as a robust transshipment depot to connect a photon-driven oxygen-evolution part, with other components enabling the underwater system to produce electricity and oxygen for low-oxygen-zone restoration, to supply continuous day and night electricity, and to sense seawater in authentic seawater. The stability of the system is demonstrated for more than 100 day-night cycles. The concept presented here highlights the prospect of using ocean solar energy to achieve multiple tasks with an all-in-one platform.