Field emission properties of aligned ZnO nanorods on Ti substrate

摘要

Aligned ZnO nanorods were grown on titanium (Ti) substrate by simple and facile thermal evaporation process using high purity metallic zinc powder in the presence of oxygen. The grown nanorods were studied in terms of their morphological, structural and field emission properties by using different analytical tools such as field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The field emission properties of the as-grown aligned ZnO nanorods were also investigated which resulted in a turn-on field of ~2.65 kV. This research demonstrates that simply prepared ZnO nanorods can be used for field emission device applications.