ZnO Nanowires-array Photoelectrodes Sensitized with Quantum Dots:Enhancement for Water Splitting Reaction
【摘要】:正We demonstrated the combination of QDs(e.g.CdTe and HgCdTe) and ZnO nanowires for photoelectrochemical water splitting.Employment of QDs in water splitting system has major advantage.The efficiency for water splitting reaction can be exactly measured in aqueous system without sacrificial reagents.The maximum photoconversion efficiency of 1.83%was observed at an applied potential of~0.25 V.Moreover,the photocurrent response were almost identical for 50 cycles,which was demonstrated very good stability of this structure and used as photoanodes were relatively stable in the photo-oxidation process in aqueous solution.