Title : 
Helicity of Carbon Nanotubes and Helix-shaped Carbon Nanotubes
         
        
            Author : 
Cheng, Ji-Peng ; Zhang, Xiao-Bin
         
        
            Author_Institution : 
Dept. of Mater. Sci. & Eng., Zhejiang Univ., Hangzhou
         
        
        
        
        
        
            Abstract : 
Determination of the helicity of carbon nanotubes (CNTs) is useful for CNTs in nanoelectronic device applications. Using electron diffraction to measure chiral angle with a high precision is reviewed, and helix-shaped carbon nanostructures are introduced and characterized by transmission electron microscopy. The possible formation mechanism of helix-shaped CNTs is also referred in the paper
         
        
            Keywords : 
carbon nanotubes; chirality; electron diffraction; materials preparation; nanoelectronics; transmission electron microscopy; C; CNT helicity; TEM; carbon nanotubes; chiral angle measurement; electron diffraction; helix shaped CNT formation mechanism; nanoelectronic device applications; transmission electron microscopy; Carbon nanotubes; Diffraction; Goniometers; Laboratories; Materials science and technology; Scanning electron microscopy; Shape; Systems engineering and theory; Toroidal magnetic fields; Transmission electron microscopy; carbon nanotubes; helicity; helix-shaped;
         
        
        
        
            Conference_Titel : 
Nano/Micro Engineered and Molecular Systems, 2006. NEMS '06. 1st IEEE International Conference on
         
        
            Conference_Location : 
Zhuhai
         
        
            Print_ISBN : 
1-4244-0139-9
         
        
            Electronic_ISBN : 
1-4244-0140-2
         
        
        
            DOI : 
10.1109/NEMS.2006.334825