Growth mechanisms of mesoscopic oxides on metal surfaces

• Main Authors: Chun-Tung Chao, 趙君棟
• Other Authors: Yue-Lin Huang
• Format: Others
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/85822199445851597724

碩士 === 國立東華大學 === 物理學系 === 104 === One-dimensional growth mechanisms of mesoscopic oxides formed on heated metallic substrates have been investigated. Morphology evolution of surface oxides was observed in dependence of temperature, time, oxygen content of the ambient gas, and heating rate. Evident deviations from the description of an available nanowire growth model based thermally activated Zn migration and diffusion-limited processes have been found. Accordingly, a new model based on self-catalytic nanowire growth mechanism has been proposed, taking into account the competition between one- and two-dimensional growth modes of the surface oxides as well as the growth speeds dominated by reaction-limited processes.