Full metadata
Title
Carbon nanotube based nanofluidic devices
Description
Nanofluidic devices in which one single-walled carbon nanotube (SWCNT) spans a barrier between two fluid reservoirs were constructed, enabling direct electrical measurement of the transport of ions and molecules. Ion current through these devices is about 2 orders of magnitude larger than that predicted from the bulk resistivity of the electrolyte. Electroosmosis drives excess current, carried by cations, and is found to be the origin of giant ionic current through SWCNT as shown by building an ionic field-effect transistor with a gate electrode embedded in the fluid barrier. Wetting of inside of the semi-conducting SWCNT by water showed the change of its electronic property, turning the electronic SWCNT field-effect transistor to "on" state. These findings provide a new method to investigate and control the ion and molecule behavior at nanoscale.
Date Created
2011
Contributors
- Pang, Pei (Author)
- Lindsay, Stuart (Thesis advisor)
- Ros, Robert (Committee member)
- Shumway, John (Committee member)
- Tao, Nongjian (Committee member)
- Menéndez, Jose (Committee member)
- Arizona State University (Publisher)
Topical Subject
Resource Type
Extent
xi, 140 p. : ill. (some col.)
Language
eng
Copyright Statement
In Copyright
Primary Member of
Peer-reviewed
No
Open Access
No
Handle
https://hdl.handle.net/2286/R.I.14268
Statement of Responsibility
by Pei Pang
Description Source
Retrieved on Oct. 18, 2012
Level of coding
full
Note
thesis
Partial requirement for: Ph.D., Arizona State University, 2011
bibliography
Includes bibliographical references (p. 126-138)
Field of study: Physics
System Created
- 2012-08-24 06:06:36
System Modified
- 2021-08-30 01:50:31
- 3 years 2 months ago
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