Characterization Analysis of Graphene Films Prepared by Graphite Bulk

• Main Authors: Xing-Tyng Huang, 黃新亭
• Other Authors: 王錫九
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/x2w994

碩士 === 國立臺北科技大學 === 材料科學與工程研究所 === 102 === Graphene is a two-dimensional crystal of carbon atoms arranged in a honeycomb lattice with excellent properties such as high conductivity,high mechanical stress, high specific surface area, and high electron mobility. In this study, graphite bulk of metal films generated on the high temperature catalytic principle. Graphite powder pressed into bulk ingot, ingot as graphite bulk and then to the substrate, respectively, the composite sputtering a metal films (copper films, nickel films) on the surface of the graphite bulk ingot, and then by vacuum sintering furnace heat treatment, the carbon atom at time (1hr) diffusion within the graphite bulk to result metal films formed on the surface of the bulk ingot silvery graphene films, in the same identical process parameters, with three kinds of heat treatment temperature (1000°C, 900°C, 800°C) different ways to scanning electron microscope of three different heat treatment temperatures of the metal films surface wrinkling stack structure. By Raman spectrum, it is discovered that G peak, which is quite sharp, is at the position of 1580 cm-1, and 2D peak, which is a characteristics of graphene, is at about 2750 cm-1,and found in the resulting two-dimensional crystal of the graphite films, In this experiment to see graphene films heat treatment temperature 1000 ° C and 800 ° C, 900 ° C compared to the heat treatment temperature, in the graphene films 1000 ° C generated more large area continuous graphite films, 900 ° C graphite films area and heat treatment 1000 ° C no difference is less and less of the graphene films generated 800 ° C, and a small area is not continuous graphite films.