Large-area nanowire arrays of molybdenum and molybdenum oxides: synthesis and field emission properties

Well-aligned nanowire arrays of Mo and its oxides have been synthesized. MoO2 nanowire arrays are first synthesized by thermal evaporation in a vacuum chamber. With further treatments in the growth chamber, the above nanowire arrays can be turned into MoO3 nanowire arrays or metallic Mo nanowire arrays (see Figure). The field emission properties of these nanowires are fully investigated.