Ordered semiconductor ZnO nanowire arrays and their photoluminescence properties

Abstract
Ordered semiconductorZnOnanowire arrays embedded in anodic alumina membranes (AAM) were fabricated by generating alumina templates with nanochannels, electrodepositing Zn in them, and then oxidizing the Znnanowire arrays. The polycrystallineZnOnanowires with the diameters ranging from 15 to 90 nm were uniformly assembled into the hexagonally ordered nanochannels of the AAM. Photoluminescence (PL) measurements show a blue PL band in the wavelength range of 450–650 nm caused by the singly ionized oxygen vacancy in ZnOnanowires.