Influence of co-existing species on charge transfer in dye-sensitized nanocrystalline oxide semiconductors in aqueous suspension for H2 evolution under visible light

- H2 evolution by dye-sensitized oxide nanoparticles was examined under visible light.
- H2 evolution was influenced by oxide semiconductor, donor, and dye-sensitizers.
- Photochemical and electrochemical analyses revealed the electron transfer processes.
- The co-existing species affect the electron injection and recombination processes.
- Oxide onset potential depends on the combination of dyes and co-existing species.