摘要
采用低能氢等离子体和中能C+离子束辐照技术相结合的方法,实现了碳纳米管向金刚石纳米晶粒的转变,完成了一个从有序(碳纳米管)到无序(无定形碳纳米线)再到有序(金刚石纳米晶)的转变过程。利用透射电子显微镜(TEM)、选区电子衍射(SAD)和拉曼光谱(Raman)等研究了晶粒的微观结构,并对纳米金刚石晶粒的生成机理进行了初步探讨。
The transformation of carbon nanotubes to nanocrystalline diamond was accomplished by combining carbon ion irradiation with H2 plasma, which led to a process of order-to-disorder-to-order transition. Transmission electron microscopy (TEM), selected-area electron diffraction (SAED) and Raman spectroscopy were carried out to investigate microstructure of the crystalline grain. The mechanism of transition from carbon nanotubes to diamond nanoparticles was discussed.
出处
《核技术》
CAS
CSCD
北大核心
2004年第8期571-575,共5页
Nuclear Techniques
基金
中国科学院知识创新工程重要方向项目(KJCX2-SW-N02)
国家自然科学基金(10375085)
上海市纳米专项(0352nm050)
关键词
碳纳米管
粒子辐照
金刚石
Carbon nanotubes, Ion irradiation, Diamond
