Controlled Preparation of Micron-Size-Pattemed ZnO Nanowire Field Emitters

Micron-size-patterned ZnO nanowire field emitters were fabricated by thermal oxidation method. The morphology and population density of the ZnO nanowires grown on the patterns were optimized by adjusting the ambient atmospheric fluidity around patterns during thermal oxidation process. Field emission characteristics of prepared micron-size-patterned ZnO nanowire arrays were measured. The results show large area current ZnO nanowire field emitters with high and stable current could be achieved by using the method reported in this study.