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Transparent Conductive Thin Films of Single-Wall Carbon Nanotubes Encapsulating Dopant Molecules
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Copyright (2012) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.The following article appeared in Applied Physics Letters, 100, 063121 ; 2012 and may be found at http://dx.doi.org/10.1063/1.3684811
Transparent conductive thin films of single-wall carbon nanotubes (SWCNTs) doped with organic dopant molecules encapsulated inside the SWCNTs are reported. Doping with tetrafluorotetracyano-p-quinodimethane encapsulated within the SWCNTs improved the ratio of direct current to optical conductivity in the SWCNT thin films by a factor of about 1.8. Thermal stability of the improvement in electrical conductivity by encapsulation doping is investigated as a function of annealing temperature. We found that encapsulation doping provides stable conductivity enhancement in transparent thin films of SWCNTs compared to doping by adsorbed dopant molecules outside the SWCNTs.
Transparent Conductive Thin Films of Single-Wall Carbon Nanotubes Encapsulating Dopant Molecules
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