Zhou, Jing and Li, Hong and Lu, Jing and Luo, Guangfu and Lai, Lin and Qin, Rui and Wang, Lu and Nagase, Shigeru and Gao, Zhengxiang and Mei, Waining and Li, Guangping and Yu, Dapeng and Sanvito, Stefano (2010) Selection of single-walled carbon nanotubes according to both their diameter and chirality via nanotweezers. Nano Research, 3 (4). pp. 296-306.
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Diameter- and chirality-dependent interactions between aromatic molecule-based nanotweezers and single-walled carbon nanotubes (SWNTs) are revealed by density functional theory calculations. We found that the threshold diameter of selected SWNTs is determined by the end-to-end distance of the nanotweezer. Large-diameter SWNTs are preferred by a nanotweezer with an obtuse folding angle, whereas small-diameter SWNTs are favored by a nanotweezer with an acute folding angle. The adsorption can be further stabilized by the orientational alignment of the hexagonal rings of the nanotweezer and the SWNT sidewall. Therefore, by taking advantage of the supramolecular recognition ability of the aromatic molecule-based nanotweezer, SWNTs can be enriched with both controllable diameter and chirality.
|Uncontrolled Keywords:||Carbon nanotubes, nanotweezer, selective adsorption, density functional theory|
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nano objects
|Deposited By:||Lesley Tobin|
|Deposited On:||30 Aug 2010 13:17|
|Last Modified:||30 Aug 2010 13:17|
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