Microstructure of High c-Axis Oriented Stand-Alone ZnO Self-Assembled Film

作者：Masuda Yoshitake^*; Kato Kazumi

来源：Journal of Nanoscience and Nanotechnology, 2009, 9(1): 490-494.

DOI：10.1166/jnn.2009.J006

• ZnO
• Stand-Alone Film
• Microstructure
• Nano-Sheets
• Self-Assembled Film
• Crystal Orientation
• Air-Liquid Interface
• Morphology Control

Stand-alone ZnO films were fabricated at air-liquid interfaces. The Microstructures of the films were observed precisely using a transmission electron microscope (TEM) in this study. They were assemblies of nano-sheets having uniform film thickness. The nano-sheets grew down toward the bottom of solutions by the supply of Zn ions from the solutions. X-ray diffraction patterns indicated high c-axis orientation of the films perpendicular to the air-liquid interface. An area of the nano-sheets was magnified for further observation. Electron diffraction patterns and lattice images indicated that the nano-sheets consisted of ZnO crystals. A slight amount of co-precipitated zinc carbonate hydroxide (Zn(5)(CO(3))(2)(OH)(6)) was also observed. Their morphologies were drastically changed by electron beam irradiation because of dehydration and crystallization to ZnO.

• 出版日期2009-1