Synergistic Surface/Bulk Charge Modulation Enables Record-Level Photocurrent in Hematite Photoanodes without Co-Catalysts for Photoelectrochemical Water Splitting
Hematite (α-Fe2O3) photoanodes are limited by poor bulk conductivity and severe surface recombination, which hinder their photoelectrochemical (PEC) water-splitting activity. We demonstrate that a simple, rapid microwave-sintering (RMS) route simultaneously incorporates Ti into the bulk and establishes a Ge surface g...