Unravelling the Interfacial Charge Dynamics of Atomically Dispersed Nickel on Hematite 001 Photoelectrodes

Key Points

• The main aim is to improve the efficiency of hematite photoanodes by addressing slow charge kinetics and surface recombination.
• Developed a defect-remediation strategy for anchoring atomically dispersed nickel on hematite.
• Analyzed charge dynamics on the {001} basal plane of hematite using experimental techniques.
• Assessed the efficiency enhancement in photoelectrochemical applications.
• Observed significant improvement in charge separation efficiency due to defect remediation.
• Enhanced charge dynamics were correlated with increased photoelectrochemical performance.
• Showed a marked reduction in surface recombination rates, leading to better overall efficiency.