  We investigated the optical and optoelectronic properties of vertically
aligned Al:ZnO nanorod arrays synthesized by the hydrothermal technique at a
considerably low temperature on a sputtered Al-ZnO seed layer. The nanorod
arrays maintained remarkable alignment along the c-axis over a large area. The
seed layers and nanorod arrays showed various optical band gaps. Investigation
of the optoelectronic properties of nanorod arrays on
