Sonochemical synthesis and optical properties of amorphous ZnO nanowires

摘要: Large-scale amorphous wire-like ZnO nanostructures were prepared by ultrasonic spray pyrolysis Zn(CO)5 without involvement of any template or patterned catalyst. The as-obtained nanowires characterized using scanning/transmission electron microscopy, X-ray diffraction/photoelectron spectroscopy, energy-dispersed spectrometry, selected area electronic diffraction, and high-resolution transmission microscopy. results reveal the as-made noncrystalline samples are about 30–60 nm in diameter several tens microns length growth mechanism is tentatively proposed as self-assembly soft mechanism. photoluminescence spectra all as-studied specimens exhibit one wide visible emission peak 508 nm. corresponding PL intensity greatly increased with an annealing temperature, which has application for a high efficiency vacuum fluorescent displays low-voltage phosphor.