Rapid ZnO Nanopillar Array Growth by Microwave Assisted Heating

摘要

Zinc oxide (ZnO) nano-wires have draw people's attention in recent studies. The unique structural and physical properties offer fascinating potential for future technological applications. The state-of-the-art fabrication process of ZnO nano-wires is based on vapor-liquid-solid (VLS) method. In this paper, the microwave assisted heating technique is introduced for the growth of ZnO nanopillar arrays. The microwave grown ZnO nanowires were characterized by field-emission scanning electron microscopy, X-ray diffraction, transmission electron microscopy, and photoluminescence spectroscopy. It was demonstrated that (001) oriented single crystal ZnO nanowires can be grown vertically and uniformly on a-plane sapphire wafers.