High sensitivity to humidity of an element based on a carbon-nanotube bundle

The results of development and studies of humidity-sensitive elements based on a carbon-nanotube bundle are presented. It has been demonstrated that arrays of nanotubes grown by the low-temperature plasma-chemical method on planar silicon structures have exceptional sensitivity to humidity. The rati...

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Bibliographic Details
Published inTechnical physics letters Vol. 39; no. 10; pp. 887 - 889
Main Authors Bulyarskii, S. V., Basaev, A. S., Gal’perin, A. V., Ermakov, M. S., Pavlov, A. A., Shaman, Yu. P.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.10.2013
Subjects
Classical and Continuum Physics
Physics
Physics and Astronomy
Exceptional Sensitivity
Jump Transition
Polysilicon
Contact Potential Difference
Technical Physic Letter
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Summary:The results of development and studies of humidity-sensitive elements based on a carbon-nanotube bundle are presented. It has been demonstrated that arrays of nanotubes grown by the low-temperature plasma-chemical method on planar silicon structures have exceptional sensitivity to humidity. The ratio of the structure resistance in dry and humid states is more than 10 5 -fold. Such a high relative resistance change is caused by the character of changes in conductivity of the charge carriers between individual tubes of the bundle upon adsorption of water molecules.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785013100143