Abstract
A study has reported on the detection of a significant voltage difference at one end of an individual nanotube of a single-walled carbon nanotubes (SWNT) device when a current is applied on the opposite side and it is exposed to water vapor. The study suggests that the water molecules inside the nanotube channel are dragged to flow directionally by an external electric field thereby generating an electromotive force along the nanotube. This energy conversion process is probably realized by the mutual coupling of water dipoles and free charge carriers present in SWNTs. The results of the study suggest that SWNTs can be exploited as unique, tunable molecular channels for water and might find potential application in nanoscale energy conversion. Nanofluidic logics based on the observed effects will also be of interest for future studies.
Original language | English |
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Pages (from-to) | 1772-1776 |
Number of pages | 5 |
Journal | Advanced Materials |
Volume | 20 |
Issue number | 9 |
DOIs | |
Publication status | Published - May 5 2008 |
Externally published | Yes |
ASJC Scopus Subject Areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering