Morphology control of ZnO nanostructures using Zn and W electrodes in solution plasma process

The morphology of ZnO nanostructures was controlled by the type of electrodes used, without chemical additives in the solution plasma process. Nanorod and nanosheet-type ZnO were synthesized using Zn and W electrodes, respectively. In the solution plasma process, the ZnO nanostructure can be fabricated because of the unique reaction between ions and radicals at the plasma/liquid interface. During this reaction, ions generated from the metal electrode influence the morphology of ZnO by adsorption on the (001) facet. Zn(OH)(4)(2-) ions promoted crystal growth in the [001] direction, resulting in a rod structure. In contrast, the sheet structure was formed owing to the inhibition of growth in the [001] direction by WO42- ions.

Automated summary

In this study, the morphology of ZnO nanostructures was controlled using solution plasma process without chemical additives, resulting in the synthesis of nanorod and nanosheet-type ZnO with Zn and W electrodes, respectively. The unique reaction between ions and radicals at the plasma/liquid interface was responsible for the fabrication of ZnO nanostructures, with Zn(OH)(4)(2-) ions promoting rod structure and WO42- ions inhibiting growth in the [001] direction to form sheet structure.