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Simultaneous Dielectrophoretic Separation and Assembly of Single-Walled Carbon Nanotubes on Multigap Nanoelectrodes and Their Thermal Sensing Properties.
- Source :
-
Analytical Chemistry . 12/1/2006, Vol. 78 Issue 23, p8069-8075. 7p. 5 Graphs. - Publication Year :
- 2006
-
Abstract
- By using the specifically designed multigap nanoelectrodes, we demonstrated an effective approach for the simultaneous dielectrophoretic separation and assembly of metallic and semiconducting single-walled carbon nanotubes (SWNTs). An approximate metallic—semiconductingߞmetallic multiarray structure was created by an inward-propagative sequential assembly of SWNTs under ac electric field. Such kinds of SWNT multiarray structures exhibited ultra-low-power consumption and excellent thermal sensing performances with the sensitivity being dependent on the number of gaps: the more gaps, the higher sensitivity. The effective separation of metallic and semiconducting tubes in different gaps is believed to be responsible for the improved sensitivity to temperature. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00032700
- Volume :
- 78
- Issue :
- 23
- Database :
- Academic Search Index
- Journal :
- Analytical Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 23420243
- Full Text :
- https://doi.org/10.1021/ac0614487