Facile synthesis and characterization of gallium oxide (beta-Ga2O3) 1D nanostructures: Nanowires, nanoribbons, and nanosheets
beta-Ga2O3 one-dimensional (ID) nanostructures including nanowires, nanoribbons and nanosheets were synthesized via a combined carbon thermal reduction and chemical vapor deposition (CVD) approach. All of these nanostructures consist of single-crystalline monoclinic structure, which has been confirmed via high-resolution TEM and electron diffraction analysis. We obtained beta-Ga2O3 nanowires at high temperature zone, nanosheets, and nanoribbons at medium temperature zone at low-pressure environments. We found that beta-Ga2O3 nanowires and nanoribbons have diversified different growth directions. The optical properties of beta-Ga2O3 nanowires and nanoribbons from UV-vis spectra show that the bandgaps are red-shifted by 0.13 eV.
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