Title of article :
An in situ Raman spectroelectrochemical study of the controlled doping of semiconducting single walled carbon nanotubes in a conducting polymer matrix
Author/Authors :
Kalb??، نويسنده , , Martin and Kavan، نويسنده , , Ladislav and Dunsch، نويسنده , , Lothar، نويسنده ,
Issue Information :
دوماهنامه با شماره پیاپی سال 2009
Pages :
4
From page :
2245
To page :
2248
Abstract :
The interaction of semiconducting single wall carbon nanotubes (SWCNT) and the conducting polymer poly(3,4-ethylendioxythiophene/polystyrenesulfonate) (PEDOT/PSS) was studied by Raman spectroscopy and in-situ Raman spectroelectrochemistry. The mixing of SWCNT with PEDOT/PSS caused a partial doping of SWCNT as indicated by the change of the relative intensity of the Raman features of SWCNT. The in situ Raman spectroelectrochemical measurements showed that semiconducting tubes could be doped even if they are embedded in PEDOT/PSS. However, in contrast to the neat SWCNT, the doping of SWCNT in composite is less efficient. For SWCNT in composite it is necessary to apply larger potential (by about 0.4–0.6 V) to achieve the same level of bleaching of Raman bands as in the case of neat SWCNT.
Keywords :
PEDOT/PSS , Carbon nanotubes , nanocomposites , Doping , Raman spectroscopy , Spectroelectrochemistry
Journal title :
Synthetic Metals
Serial Year :
2009
Journal title :
Synthetic Metals
Record number :
2085963
Link To Document :
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