TITLE:
Electrically-Conductive Composite Nanomaterial with Multi-Walled Carbon Nanotubes
AUTHORS:
Levan Ichkitidze, Vitally Podgaetsky, Sergei Selishchev, Eugenie Blagov, Vyacheslav Galperin, Yuri Shaman, Alexander Pavlov, Eugenie Kitsyuk
KEYWORDS:
Multiwalled Carbon Nanotubes; Electroconductive Nanomaterial; Substrates; Carboxymethyl Cellulose; Electroconductive Gel; Electroconductive Layers
JOURNAL NAME:
Materials Sciences and Applications,
Vol.4 No.5A,
May
21,
2013
ABSTRACT:
Specific conductivity of the composite nanomaterial layers with micron and submicron dimensions, consisting of carboxymethyl cellulose (CMC) and multiwalled carbon nanotubes (MWCNT) was investigated. Ultradispersed aqueous suspension was deposited on soft (aluminum foil, plates made from polyester and polyimide, cotton fabric, office paper) and solid (coverslip, silicon wafers with silicon oxide layer) substrates by silk-screen printing. Electrical resistance was measured by four-probe method and by the method of square on surface from which the conductivity and conductivity per square of surface were calculated taking into account layer’s geometric dimensions. Specific conductivity of the layers with thickness range 0.5 - 5 μm was ~1.2×104÷4×104 S/m, and max conductivity per square was ~ 0.2 S. Investigated nanomaterial is attractive to electronic and biomedical applications.