Gel-carbon nanotube materials: the relationship between nanotube network connectivity and conductivity.
The electrical resistance of carbon nanotube networks (NNs) prepared from combinations of gellan gum, xanthan gum, Triton X-100, SWNT and MWNT is reported. It is demonstrated that the NN conductivity can be obtained by analysing the resistance of two overlapping NN as a function of their overlap distance. Unexpectedly, the connectivity between two overlapping NN was found to scale with the electrical conductivity over 4 orders of magnitude. Insights into the dependence of inter-NN contact on applied pressure were obtained.
Songmee
Naratip
N
School of Chemistry, University of Wollongong, Wollongong, Australia.
Singjai
Pisith
P
in het Panhuis
Marc
M
D004553:Electric Conductivity; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D017830:Octoxynol / Q000737:chemistry; D011135:Polysaccharides, Bacterial / Q000737:chemistry; D011312:Pressure
D037742:Nanotubes, Carbon; D011135:Polysaccharides, Bacterial; C048288:gellan gum; D017830:Octoxynol; C002563:xanthan gum