ZnO nanostructured microspheres and grown structures by thermal treatment

摘要

Synthesis of flower-shaped ZnO nanostructures composed of ZnO nanosticks was achieved by the solution process using zinc acetate dihydrate, sodium hydroxide and polyethylene glycol-20000 (PEG-20000) at 180deg C for 4 h. The diameter of individual nanosticks was about 100 nm. Detailed structure characterizations demonstrate that the synthesized products are wurtzite hexagonal phase, grown along the [001] direction. The infrared (IR) spectrum shows the standard peak of zinc oxide at 571 cm~(-1). Raman scattering exhibits a sharp and strong E_2 mode at 441 cm~(-1) which further confirms the good crystal and wurtzite hexagonal phase of the grown nanostructures.