Part 3: Preventing Recombination
If recombination of pairs occurs, all photocatalytic capabilities disappear and all advantages from doping are cancelled out. Yet, with nanosized particles, current methods of preventing recombination, e.g. through flowing a current through the bulk material or through inserting positively charged holes and negatively charged electrons, cannot be implemented. Here, we propose that doping be used with an additional material that can attract electrons or holes which are generated upon being exposed to visible light. To find that material, more research must be done.
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