Fabrication of the ordered FeS2 (pyrite) nanowire arrays in anodic aluminum oxide

In this letter, the ordered FeS2 (pyrite) nanowire arrays were firstly fabricated by sulfurizing the Fe nanowires that were electrodeposited in the pores of anonic aluminum oxide (AAO). The results revealed that pyrite nanowires are well formed when sulfurized at 450 °C for 8 h. The FeS2 nanowire arrays are highly ordered and have high wire packing densities. The successfully fabricated pyrite semiconducting nanowire arrays should be of significant interest in practical applications as the semiconductor electrodes especially for photovoltaic solar cells.