The ZnO sol-gel spin-coating method is a combination of two techniques applied to produce thin nanostructured ZnO films: The sol-gel technique consists of the preparation, under defined conditions, of a ZnO solution from the mixture of a ZnO precursor [Zn(CH3COO)2·2H2O: zinc acetate dehydrate] and a solvent (2-methoxyethanol) with the addition of a stabilizing substance (ethanolamine). The clear transparent colloidal solution thus obtained,