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We demonstrated carbon nanotube (CNT) field emitters made by a filtration-transfer method. They showed low turn-on and threshold electric fields, which is attributed to the advantages of this method, such as the high density of emission sites, good electrical contact, strong mechanical adhesion, and low contamination of CNTs tips. In addition, the field emitters showed very stable emission stability...
We demonstrated a simple transfer method enables to fabricate the single-walled carbon nanotube (SWCNT) film on the plastic substrate. SWCNT network was separated from the initial substrate and transferred onto another substrate using the nitric acid. We also found that electrical conductivity of transferred film was improved. The sheet resistance of SWCNT films was changed from a 150~300 ??/sq to...
This paper outlines the fabrication and characterization of an immunosensor based on electrochemical, biological, and nano-material techniques to achieve high sensitive detection of Escherichia coli (E.coli). The working electrode consists of E.coli antibody/antigen/horse-radish peroxidase (HRP) labeled antibody immobilized on plasma-functionalized multiwalled carbon nanotube (pf-MWCNT) film. Immunosensors...
In this paper, we fabricated organic-free thin multi-walled CNT (thin-MWCNT) field emitters using a new filtration-transfer method. The method firstly forms the density-controlled thin-MWCNT film on a filter membrane by filtration and then transfers the film to a conductive adhesive tape. We evaluated and compared the genuine field emission properties of various CNT field emitters by using the filtration-transfer...
The authors demonstrated decoration of Ru nanoparticles on the surface of double-walled CNTs (DWCNTs) using a chemical process and studied their field emission properties. Ru is more stable than the low work function alkali metals when exposed to oxygen. Moreover, the melting point of Ru is much higher than that of RuO2.
In this study, we tried to cut thin multi-walled CNTs (thin-MWCNTs) using a tip sonication method and investigated the cutting effect of CNTs from their microstructure and also evaluated field emission properties.
We present a micromachined NH3 chemiresistor sensor based on O2 plasma functionalized multiwall carbon nanotube (MWCNT)/ conducting polymer (CP) composites, and discuss its gas sensing mechanism. The FTIR spectra of plasma-treated MWCNTs indicate that oxygenated groups are created on the surface of CNTs after the plasma treatment. The plasma-functionalized MWCNT/PANI sensor exhibits a linear response...
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