| 초록 |
Hematite (α-Fe2O3) is regarded as an ideal photoanode material for photoelectrochemical (PEC) water splitting. However, poor electrical conductance and short minority carrier diffusion length of α-Fe2O3 result in rapid recombination of photogenerated charge carriers, which limits the PEC performance of α-Fe2O3 photoanodes. Accordingly, surface doping and nanostructure modification of α-Fe2O3 are considering to be reasonable approaches to overcome such limitation. In this work, we applied ultrafast flame annealing method regarded as efficient alternative to easily introduce metal dopant without affecting α-Fe2O3 morphology, and to control surface catalytic properties of the electrode. The flame-induced electrode remarkably increases charge carrier separation/transfer ability and surface catalytic properties. |
