single walled carbon nanotube
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Sensors ◽  
2022 ◽  
Vol 22 (2) ◽  
pp. 490
Jiazhen Zhang ◽  
Luhan Yang ◽  
Huang Xu ◽  
Jie Zhou ◽  
Yuxiang Sang ◽  

It is challenging to obtain wafer-scaled aligned films for completely exploiting the promising properties of semiconducting single-walled carbon nanotubes (s-SWCNTs). Aligned s-SWCNTs with a large area can be obtained by combining water evaporation and slow withdrawal-induced self-assembly in a dip-coating process. Moreover, the tunability of deposition morphology parameters such as stripe width and spacing is examined. The polarized Raman results show that s-SWCNTs can be aligned in ±8.6°. The derived two terminal photodetector shows both a high negative responsivity of 41 A/W at 520 nm and high polarization sensitivity. Our results indicate that aligned films with a large area may be useful to electronics- and optoelectronics-related applications.

Xuan Hu ◽  
Shaofan Li

Freshwater scarcity has emerged as a major challenge of our time. Under this context, the importance of an efficient and energy-saving water desalination method is highlighted. In recent years, carbon nanotube (CNT) membrane characterizing with high permeability has attracted much attention in research, and it is regarded as a promising alternative to the conventional reverse osmosis technology. This work aims at numerically investigating the water desalination ability of a novel type of CNT membrane structure, namely the double-walled carbon nanotube (DWCNT) with Moiré pattern. After establishing the physical CNT models and running the molecular dynamics (MD) simulation of the water desalination system, it is found that both the single-walled carbon nanotube (SWCNT) and DWCNT can desalinate the seawater successfully while the water permeability of DWCNT is at least 18.9% higher than that of SWCNT within the same time. As far as the Moiŕe pattern adopted in this study is concerned, the water permeability of DWCNT without Moiŕe pattern is 18.6% higher than that with Moiré pattern.

2022 ◽  
Vol 213 ◽  
pp. 110310
Karolina Z. Milowska ◽  
Maciej Krzywiecki ◽  
Mike C. Payne ◽  
Dawid Janas

2022 ◽  
Vol 20 (1) ◽  
pp. 011404
Jincheng Wei ◽  
Peng Li ◽  
Linpeng Yu ◽  
Shuangchen Ruan ◽  
Keyi Li ◽  

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