TITLE:
High Moisture Sensitivity of the Elements Based on Carbon Nanotubes Array
AUTHORS:
Sergei Bulyarsky, Vyacheslav Galperin, Levan Ichkitidze, Michael Ermakov, Alexander Pavlov, Yuri Shaman
KEYWORDS:
Carbon Nanotubes; Moisture-Sensitive Elements; Conductivity; Molecules Adsorption
JOURNAL NAME:
Materials Sciences and Applications,
Vol.4 No.5A,
May
23,
2013
ABSTRACT:
The results of the research and development of the moisture-sensitive elements based on the carbon nanotubes (CNT) array are presented. It was shown that CNT arrays that were grown by low-temperature plasma enhanced chemical vapor deposition (PECVD) method on the planar Si structures exhibit extremely high moisture sensitivity. The structure resistance ratio in dry and moisture conditions exceed 400. Such relatively high change in resistances is conditioned by the pattern of change of the charge carrier’s conductivity between certain nanotubes in the bundle when water molecules adsorption occurs.