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等离子体增强热丝CVD生长碳纳米尖端的研究
引用本文:王必本,徐幸梓,张兵.等离子体增强热丝CVD生长碳纳米尖端的研究[J].物理学报,2006,55(2):941-946.
作者姓名:王必本  徐幸梓  张兵
作者单位:(1)北京工业大学应用数理学院,北京 100022; (2)重庆大学材料科学与工程学院,重庆 400044
基金项目:国家留学回国人员科研启动基金
摘    要:用CH4,NH3和H2为反应气体,利用等离子体增强热丝化学气相沉积系统在不同偏压电流的条件下制备了碳纳米尖端,并用扫描电子显微镜和显微Raman光谱仪对碳纳米尖端进行了研究.结果表明碳纳米尖端是石墨结构,随着偏压电流的增大,碳纳米尖端的顶角减小,生长速率增大.结合有关等离子体和溅射的理论,分析讨论了碳纳米尖端的形成和碳纳米尖端的生长随偏压电流的变化. 关键词: 碳纳米尖端 等离子体 化学气相沉积

关 键 词:碳纳米尖端  等离子体  化学气相沉积
文章编号:1000-3290/2006/55(02)/0941-06
收稿时间:4/6/2005 12:00:00 AM
修稿时间:2005-04-062005-05-20

Growth of carbon nanotips by plasma-enhanced hot filament chemical vapor deposition
Wang Bi-Ben,Xu Xing-Zi,Zhang Bing.Growth of carbon nanotips by plasma-enhanced hot filament chemical vapor deposition[J].Acta Physica Sinica,2006,55(2):941-946.
Authors:Wang Bi-Ben  Xu Xing-Zi  Zhang Bing
Institution:1. College of Applied Mathematics and Physics, Belling University of Technology, Belting 100022, China;2.College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
Abstract:Carbon nanotips were prepared by plasma-enhanced hot filament chemical vapor deposition under different bias current using CH4, NH3 and H2 as the reaction gases, and investigated by scanning electron microscopy and micro-Raman spectrometer. The results indicate that the carbon nanotips have graphite structure. With increasing of the bias current, the tip angles of the carbon nanotips are reduced and their growth rate are increased. Combined with theory related to plasma and sputtering, the formation of the carbon nanotips and the change of their growth rate with the bias current are discussed.
Keywords:carbon nanotips  plasma  chemical vapor deposition
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