Abstract
Hygroscopic effects on AuCl3-doped single-walled carbon nanotubes (SWCNTs) were investigated. Various concentrations of AuCl3 solution were dropped on the random network SWCNT transistors, where the doping effect was confirmed by I-Vg characteristics and a blue shift in the Raman G band. The AuCl3-doped SWCNT transistor was highly sensitive to water vapor in the I-Vg curve, especially in the positive gate bias region, compared with the undoped SWCNT transistors. We also found the selective response of water from ambient gases, such as O2 and N 2, in AuCl3-doped SWCNTs. This investigation could be beneficial for high-performance water sensor applications.
Original language | English |
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Pages (from-to) | 11618-11622 |
Number of pages | 5 |
Journal | Journal of Physical Chemistry C |
Volume | 114 |
Issue number | 26 |
DOIs | |
State | Published - 8 Jul 2010 |