Large-scale synthesis of single-crystalline β-Ga2O3 nanoribbons, nanosheets and nanowires

Through a simple gas reaction, single-crystalline beta -Ga2O3 nanoribbons, nanosheets and nanowires were synthesized on a large scale at 700 degreesC. They were characterized by means of x-ray powder diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy-dispersive x-ray spectroscopy (EDS), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), selected-area electron diffraction (SAED) and Raman spectroscopy. FE-SEM and TEM images showed that the product was composed of nanoribbons, nanosheets and nanowires. XRD, EDS, HRTEM, SAED and the Raman spectrum indicated that all of the nanoribbons, nanosheets and nanowires were of single-crystalline beta -Ga2O3.