Thermoelectric chemical sensor based on single wall carbon nanotubes

Thermoelectric properties of single wall carbon nanotubes are quite sensitive to gases in contact with the tube walls

G. U. Sumanasekera; B. K. Pradhan; C. K. W. Adu; H. E. Romero; H. C. Foley; P. C. Eklund

2003

Scholarcy highlights

  • Thermoelectric properties of single wall carbon nanotubes are quite sensitive to gases in contact with the tube walls
  • Thermoelectric chemical sensor based on single wall carbon nanotubes
  • For adsorption of six membered ring molecules C 6 H n in SWNTs, the large thermoelectric response observed for Benzene is seen to decrease as the π electrons in the molecule are removed, and the coupling between the molecules and the SWNT is thereby reduced. These effects are discussed in terms of the diffusion thermopower for a rope, and a new scattering channel associated with adsorbed molecules
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