摘要
多壁碳纳米管经由1064nm波长光纤激光辐照后，通过扫描电镜（SEM）观测发现连接现象。SEM图像清晰展示了在相互搭接的两多壁碳纳米管之间出现熔化一重熔的现象，两个或多个多壁碳纳米管融合在一起，且管壁完整光滑没有破坏迹象。通过透射电镜（TEM）表征发现在连接处有新的石墨片层生成。发现在一定功率密度的情况下，随着激光辐照时间增加，多壁碳纳米管呈现出熔化连接至破坏的趋势。
Mter the multiwall carbon nanotubes are irradiated by a 1064 nm wavelength fiber laser, connection phenomenon is found by scanning electron microscope （SEM） observation. The SEM images clearly demonstrate the melting and solidified phenomenon between the two overlapping multi walled carbon nanotubes. Two or more multi wall carbon nanotube fuse together, and the tube wall is smooth and complete without any sign of damage. Through the transmission electron microscopy （TEM）, the new graphite layers are found in the connection. Besides, It is found that in the case of a certain power density, as the laser irradiation time increases, the present multi-walled carbon nanotubes show the trend of melting connectimz to destruction.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2013年第B12期77-80,共4页
Chinese Journal of Lasers
基金
北京教育委员会提供的基金（KZ200910005006）
关键词
光纤光学
微纳连接
多壁碳纳米管
扫描电镜
透射电镜
fiber optics
nano joining
multiwall carbon nanotube
scanning electron microscoope
transmissionelectron microscopy
