以化學氣相沈積法成長直立陣列碳奈米管之研究

• Main Authors: Tang Chiung Wen, 唐炯文
• Other Authors: 馬廣仁
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/12300250489091103691

碩士 === 中正理工學院 === 兵器系統工程研究所 === 88 === Abstract The aligned carbon nanotube plays a very important role in its application as a field emission source or in making one-dimensional nano compound materials. The research, where acetylene reacts with iron (as catalyst) under high temperatures, attempts to synthesize aligned carbon nanotube. Experiments find that the overall appearance and nature of the aligned carbon nanotube are affected by different variables in the synthesizing process such as the concentration of catalyst, the operation temperatures, the flow capacity of protection or reaction gas, the reaction time, the pre-treatment, et cetera. Based on the experiment, the aligned carbon nanotube has the optimal growth when the catalyst concentration is controlled at 0.02M, temperature at 775 degrees Celsius, acetylene flow capacity at 2.5 sccm, and the reaction time at 5 minutes. The paper aims to explore in detail the various effects of variables on the growth of the aligned carbon nanotube, and to explain the related nucleating and growing mechanism. The current growth rate of the aligned carbon nanotube is approximately 10-12 mm, with its length reaching 50-60 mm, and covered area, 1 cm2. The method employed in this experiment is believed to be promising in growing aligned carbon nanotubes of larger areas in the future. Key words : aligned carbon nanotube