| 초록 |
Photoelectrochemical (PEC) cell is the one most elegant, practical and potentially more efficient route to convert the solar energy to stored chemical energy through the splitting of raw water into molecular oxygen and hydrogen. In this regard, various semiconductor metal oxides including TiO2, Fe2O3, WO3 and BiVO4 gained much attention as a photoelectrode material for H2 production. However, most of these metal oxides do not meet the optoelectronic properties that lead to both low light harvesting efficiencies and required large over potential to drive water oxidation. Therefore developing new robust energy materials that can efficiently harvest a large portion of the solar spectrum with better charge transporting properties is an ultimate challenge nowadays. In this perspective, our present research efforts devoted not only designing photoelectrode materials with high photocurrent but also reducing the over potential with surface treatments. In addition, the primary goal of our research is to fabricate an efficient photoelectrochemical water splitting device (PEC) that can split water directly on semiconductor surface without requiring over potential to realize the means of “The need for clean energy”. |
