Synthesis of core/shell nanowires using doped ZnO targets

ZnO nanowires have attracted a great attention as building blocks for the optoelectronic devices. For the practical optoelectronic applications based on the ZnO nanowires, synthesis technique of ZnO nanowire with layered structures is significantly important in order to achieve a p-n junction, a core/shell structure, and a multiple quantum well structure. We have been succeeded in growing nanowires on the pre-deposited ZnO film and core/shell structure by a newly developed nanoparticle-assisted pulsed-laser deposition (NAPLD) using multi-target changer. In this paper, recent progresses of synthesis of layer-structured ZnO nanowires using doped ZnO target, such as a Li-Ni codoped ZnO, are described.