Preparation and Study the Properties of Gallium doped Zinc Oxide Nanocomposite for Use in Photodetector and scintillation Materials

In this article, a transparent gallium doped zinc oxide nanocomposite with a novel photoluminescence properties was prepared at room temperature. GZO nanocrystals were synthesized by the simple sol-gel method. The optical, structural and morphological properties of the samples were investigated by various analysis including photoluminescence spectrum, absorption spectrum, XRD, EDAX, FTIR, TEM and FESEM images. The XRD study showed that the samples had a wurtzite structure consistent with all crystalline plates of ZnO without any additional peaks or oxidation phases. Two nanocomposites containing dried nanopowders and the other containing calcined nanopowders were also prepared. Calcined nanocomposite exhibited good optical properties, including 70% optical transparency in the visible wavelength region with a high green emission peak at the room temperature. Also, the presence of gallium and zinc and related bonds in the structure was confirmed by EDAX and FTIR characterization. Studies have shown that the GZO composite has a novel luminance property in the blue-to-green visible region, which can be a good candidate for photo detection and photonic applications with a very low cost.