Study of Growth and Characterization of Fe Catalyzed Ga2O3 Nanowires

In the present study, Fe as a catalyst was used to grow single crystalline monoclinic gallium oxide Ga203 nanowires using chemical vapor deposition method. The morphology, structure and luminescence properties of the as grown Ga2Ü3 nanowires were investigated using various characterization techniques. The diameter of the as grown nanowires was in the range of 50 to 100 nm, and the lengths up to tens of micrometers. The structural investigation of the nanowires was carried out using X ray diffraction that showed monoclinic phase of Ga203. Further, the transmission electron microscope TEM investigations along with selected area diffraction pattern revealing single crystalline nature of the nanowires. The as grown Ga203 nanowires had preferred orientation along [1 1 1] direction. The high resolution TEM image showed regular arrangement of atoms and the lattice spacing between 1 1 1 planes was around 0.266 nm. The luminescence properties ofthe as grown nanowires were measured using cathodoluminescence CL spectroscopy. The CL measurements of Ga203 nanowires revealed a strong broad UV blue emission band and a weak red emission band