Scanning Photoelectrochemical Microscopy for the Investigation of Local Photocatalytic H2 Evolution in Matrixed Langmuir Films.

Key Points

• This research aims to explore local hydrogen evolution rates and quantum efficiencies in matrixed Langmuir films.
• Utilized scanning photoelectrochemical microscopy to investigate film architectures.
• Measured apparent quantum efficiencies across different configurations.
• Analyzed local photocatalytic activity under varying conditions.
• Demonstrated significant variations in photocatalytic activity among different Langmuir film structures.
• Observed higher apparent quantum efficiencies in optimized film architectures.
• Indicated the potential of photoelectrochemical microscopy for advanced material characterization.