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8. Effect of H2O adsorption on the electrical transport properties of double-walled carbon nanotubes

Author

Tang, Dongsheng, Ci, Lijie, Zhou, Weiya, and Xie, Sishen

Subjects
*CARBON, *NANOTUBES, *MOLECULES, *WATER, *ADSORPTION (Chemistry), *DIPOLE moments
Abstract

Abstract: Water molecules adsorbed on a double-walled carbon nanotube (DWCNT) serve as charge trapping centers when present in low density and as electron donors when present in high density. There is a discontinuous change between the low- and high-density regions. H2O molecules are apt to be adsorbed on the outer surface of DWCNTs, and in this case the electrical transport properties are extremely sensitive to environment, which suggests that DWCNTs are hole doped and act as an electric dipole with the inner tube. [Copyright &y& Elsevier]

Published
2006
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