USE OF ALIGNED CARBON NANOTUBES AS ELECTRIC FIELD SENSORS

Application of electric field in normal to aligned carbon nanotubes creates Coulomb forces at intertube junctions and tubes become closely packed. Packed structure facilitates intertube transfer of carriers and reduced resistance is found to scale with field strength. Aggregated nanotubes are theref...

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Bibliographic Details
Published in:Electromagnetic waves (Cambridge, Mass.) Mass.), 2013-01, Vol.137, p.439-452
Main Authors: Lu, Chieh-Lien, Tsai, Hsin-Jung, Wei, Bee-Yu, Hsu, Wen-Kuang
Format: Article
Language:English
Subjects:
Electric fields
Electric properties
Materials
Nanotubes
Production processes
Sensors
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Summary:Application of electric field in normal to aligned carbon nanotubes creates Coulomb forces at intertube junctions and tubes become closely packed. Packed structure facilitates intertube transfer of carriers and reduced resistance is found to scale with field strength. Aggregated nanotubes are therefore used as field sensors and sensitivity is evident by drastic fluctuations of resistance. Sensing mechanism is discussed and verified.
ISSN:1559-8985
1070-4698
1559-8985
DOI:10.2528/PIER13011707