Study on the fabrication of ZnO nanomaterials by the sol-gen method combined with multi-layer spin coating and annealing
DOI:
https://doi.org/10.56764/hpu2.jos.2022.1.1.46-52- Keywords:
- ZnO
Abstract
ZnO polycrystalline nanomaterials are fabricated by the sol-gel method combined with multi-layer spin-coating and annealing. The fabricated material is a monocrystalline wurtzite hexagonal structure, homogeneous with spherical monocrystalline particles of size 20-30 nm. In this study, we have fabricated and tested ZnO samples under different conditions (annealing environment, annealing temperature, number of layers, annealing time). We examined structural morphology by X-ray diffraction (XRD), SEM, the optical properties were investigated by fluorescence spectroscopy. As a result, the best fabrication parameters proposed are annealed in Argon gas at 3 500 ° C for 12 hours. These fabricated samples reduce the area of fluorescence emission due to defects.
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