| Title | Helicity-dependent single-walled carbon nanotube alignment on graphite for helical angle and handedness recognition |
| Authors | Chen, Yabin Shen, Ziyong Xu, Ziwei Hu, Yue Xu, Haitao Wang, Sheng Guo, Xiaolei Zhang, Yanfeng Peng, Lianmao Ding, Feng Liu, Zhongfan Zhang, Jin |
| Affiliation | Peking Univ, State Key Lab Struct Chem Unstable & Stable Speci, Coll Chem & Mol Engn,Ctr Nanochem, Beijing Natl Lab Mol Sci,Key Lab Phys & Chem Nano, Beijing 100871, Peoples R China. Peking Univ, Dept Elect, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China. Hong Kong Polytech Univ, Inst Text & Clothing, Hong Kong, Hong Kong, Peoples R China. Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China. |
| Keywords | ORIENTED GROWTH GRAPHENE TRANSITIONS ELECTRONICS |
| Issue Date | 2013 |
| Publisher | nature communications |
| Citation | NATURE COMMUNICATIONS.2013,4. |
| Abstract | Aligned single-walled carbon nanotube arrays provide a great potential for the carbon-based nanodevices and circuit integration. Aligning single-walled carbon nanotubes with selected helicities and identifying their helical structures remain a daunting issue. The widely used gas-directed and surface-directed growth modes generally suffer the drawbacks of mixed and unknown helicities of the aligned single-walled carbon nanotubes. Here we develop a rational approach to anchor the single-walled carbon nanotubes on graphite surfaces, on which the orientation of each single-walled carbon nanotube sensitively depends on its helical angle and handedness. This approach can be exploited to conveniently measure both the helical angle and handedness of the single-walled carbon nanotube simultaneously at a low cost. In addition, by combining with the resonant Raman spectroscopy, the (n,m) index of anchored single-walled carbon nanotube can be further determined from the (d,theta) plot, and the assigned (n, m) values by this approach are validated by both the electronic transition energy E-ii measurement and nanodevice application. |
| URI | http://hdl.handle.net/20.500.11897/313029 |
| ISSN | 2041-1723 |
| DOI | 10.1038/ncomms3205 |
| Indexed | SCI(E) |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 信息科学技术学院 纳米器件物理与化学教育部重点实验室 |
