The Annealing-Induced Shape Deformation of Hydrothermal-Grown ZnO Nanorods

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2012,（1）
• 页码范围: 257-260
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/29/1/017804

摘要

The shape deformation of hydrothermal-grown ZnO nanorods is observed.After annealing at high temperature,hexagonal ZnO nanorods change to become cylinder-like ones.The adjacent nanorods tend to connect to each other to form one nanostructure.Photoluminescence measurements show that a sample annealed at 600℃ has a strong ultraviolet emission with a very weak visible emission,and with increasing annealing temperature the visible emission becomes more intense.It can be concluded from analyses of the morphological changes that the surface reaction between the doped C and ZnO is the main reason for the shape deformation of the ZnO nanorods.