A broadband and strong visible-light-absorbing photosensitizer boosts hydrogen evolution.

ABSTRACT: Developing broadband and strong visible-light-absorbing photosensitizer is highly desired for dramatically improving the utilization of solar energy and boosting artificial photosynthesis. Herein, we develop a facile strategy to co-sensitize Ir-complex with Coumarins and boron dipyrromethene to explore photosensitizer with a broadband covering ca. 50% visible light region (Ir-4). This type of photosensitizer is firstly introduced into water splitting system, exhibiting significantly enhanced performance with over 21 times higher than that of typical Ir(ppy)₂(bpy)⁺, and the turnover number towards Ir-4 reaches to 115840, representing the most active sensitizer among reported molecular photocatalytic systems. Experimental and theoretical investigations reveal that the I

SUBMITTER: Wang P 

PROVIDER: S-EPMC6637189 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature