Diameter dependence of low-energy electron and photon irradiation damage in single-walled carbon nanotubes

2006 ◽  
Vol 430 (4-6) ◽  
pp. 370-374 ◽  
Author(s):  
Satoru Suzuki ◽  
Yoshihiro Kobayashi
2007 ◽  
Vol 994 ◽  
Author(s):  
Satoru Suzuki ◽  
Yoshihiro Kobayashi

AbstractWe show that low-energy (20 eV–20 keV) electron or photon irradiation extinguishes the characteristic physical and chemical properties of single-walled carbon nanotubes, indicating that the irradiation damages the nanotubes. The irradiation-induced defects convert the electric properties of metallic SWNTs to semiconducting, and the nominal bandgap can be tuned simply by the irradiation dose. The defects also have the following interesting properties. The damage and recovery are reversible, indicating that the number of carbon atoms is preserved. The damage and recovery strongly depend on the diameter, suggesting that the damage is prominent in a rolled up graphene sheet, but not in a planar one. The activation energy of the defect healing is so small, depending on the diameter, that the defects can be healed even at room temperature or below.


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Junghyun Lee ◽  
Seung Min Moon ◽  
Yun-Tae Kim ◽  
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...  

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Nano Letters ◽  
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Vol 5 (8) ◽  
pp. 1575-1579 ◽  
Author(s):  
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Kenichi Kanzaki ◽  
Saturo Suzuki ◽  
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Hiroshi Inokawa ◽  
...  

Small ◽  
2020 ◽  
Vol 16 (8) ◽  
pp. 1906745 ◽  
Author(s):  
Arjun Menon ◽  
Yuri L. Slominskii ◽  
Jan Joseph ◽  
Oleg P. Dimitriev ◽  
Dirk M. Guldi

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