Study on mechanical properties of one-dimensional zinc oxide nanowires by molecular dynamics

• Main Authors: Chu-Yu Wang, 王舉義
• Other Authors: Te-Hua Fang
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/68909603754775679986

碩士 === 國立高雄應用科技大學 === 模具工程系 === 99 === Zinc oxide (ZnO) is one of wide band gap semiconductor materials. ZnO nanostructures have increasingly been used for potential applications in piezoelectric and electro-optical devices and nanogenerators. It is important to understand the physical behavior of ZnO nanowires, because the devices is caused by rubbing damage during the piezoelectric component mamfacture. In this study, we simulation the buckling behavior, structural change and mechanical properties of ZnO nanowires by molecular dynamics simulation. The influence of the condition explored different slenderness ratio, temperature and geometry on zinc oxide nanowires of internal structure, the lattice change, force-displacement curve and the diagram with stress and slenderness ratio are also investigated. We analyze the buckling behavior of ZnO nanowires using finite element method. In compare to the different of molecular dynamics. The results show that the slip phenomenon will happen in the short slenderness ratio. The stress of finite element method and molecular dynamics exhibit Euler buckling curves and varied with slenderness ratio.