Abstract
This work reports a study on two different preparation methods for TiO sub(2) seeded-templates and ZnO nanostructures. Firstly, deposition of TiO sub(2) seeded-templates via solution-immersion method on TiO sub(2) seed layers. Solution of TiO sub(2) at different molarity concentrations were prepared and coated on glass substrates until seven layers of TiO sub(2) for each molarities, followed by annealing treatment and solution-immersion process in aqueous solution containing 1:1 ratio of 0.05 M of zinc nitrate hexahydrate (Zn(NO sub(3)) sub(2).6H sub(2)O) and hexamethylenetetramine (HMTA) (C sub(6)H sub(12)N sub(4)). FESEM images of fabricated ZnO nanostructures grown on TiO sub(2) seeded-template shows needle-like shape with smaller tip. The optical properties of the nanostructures thin films are observed by PL and UV-Vis. Intensity of PL emission and absorption properties at UV region are seemingly affected by varying the molarity concentrations of TiO sub(2) seed layer.