What Strategies Can Be Used to Mitigate Charge Carrier Recombination?
To enhance catalytic efficiency, several strategies can be employed to mitigate charge carrier recombination:
1. Surface Passivation: Coating the catalyst surface with a thin layer of another material can reduce surface recombination. 2. Doping: Introducing foreign atoms into the semiconductor lattice can create localized energy levels that help in charge separation. 3. Heterojunction Formation: Creating junctions between different semiconductor materials can facilitate the separation and transfer of charge carriers. 4. Core-Shell Structures: Designing core-shell nanoparticles can provide spatial separation of electrons and holes, reducing recombination. 5. Use of Co-catalysts: Adding co-catalysts can capture and transfer charge carriers efficiently, thus minimizing recombination.
