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  4. Diameter Effect on the Sidewall Functionalization of Single-Walled Carbon Nanotubes by Addition of Dichlorocarbene
 
research article

Diameter Effect on the Sidewall Functionalization of Single-Walled Carbon Nanotubes by Addition of Dichlorocarbene

Zhang, Kang
•
Zhang, Qing
•
Liu, Cao
Show more
2012
Advanced Functional Materials

Dichlorocarbene is added to the sidewalls of single-walled carbon nanotubes (SWNTs) with diameters ranging from 1.2 to 2.2 nm. Small diameter SWNTs are found to react much more easily than large diameter SWNTs. Upon functionalization, the conductance could be largely preserved for almost all SWNTs, while an effective bandgap increase for functionalized metallic SWNTs (m-SWNTs) and a bandgap reduction for functionalized semiconducting SWNTs (s-SWNTs) are generally observed. The results suggest that [2 + 1] cycloaddition is an excellent choice of processing, resulting in SWNTs over a large diameter range with electronic properties that are almost unaffected. Furthermore, possible separation of SWNTs according to their diameters could be achieved due to the apparent diameter-dependent reactivity.

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Type
research article
DOI
10.1002/adfm.201201777
Web of Science ID

WOS:000312301800016

Author(s)
Zhang, Kang
Zhang, Qing
Liu, Cao
Marzari, Nicola  
Stellacci, Francesco
Date Issued

2012

Publisher

Wiley-V C H Verlag Gmbh

Published in
Advanced Functional Materials
Volume

22

Issue

24

Start page

5216

End page

5223

Subjects

carbon nanotubes

•

conductance

•

dichlorocarbene

•

functionalization

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
THEOS  
Available on Infoscience
March 28, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/91112
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