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Semiconducting carbon nanotubes (CNTs) are considered as one of the most promising candidates to replace silicon in future nano-electronics. Single-walled carbon nanotubes (SWNTs) have been used as an active channel material of field effect transistors (FETs). The nanotube-based circuit shows great potential in future electronics and computer technology. Integrating SWNT FETs to form logic gates—the...
A low-cost, flexible, and disposable immunosensor is presented in this paper. The single-walled carbon nanotubes (SWNT) and biomolecules are self-assembled on micro patterned electrodes. The immuno-chip acts as the platform of a horseradish peroxidase (HRP) labeled sandwiched Enzyme-Linked Immunosorbent Assay (ELISA). The pH change induced by the biochemical reactions influences the electrical conductance...
We present a carbon nanotube thin film based device as a high-resolution acetylcholine sensor. Carbon nanotube and acetylcholinesterase thin films are self-assembled on a silicon substrate as conducting and sensing layers, respectively. Both films are deposited using layer-by-layer self-assembly process. The conductance of the carbon nanotube film is changed due to the generated hydrogen ions in the...
We present a simple, effective, and accurate method to grow single-walled carbon nanotube (SWNT) multilayer thin films with layer-by-layer (LbL) nano self-assembly. The thin film is assembled on the substrate by alternate adsorption of SWNTs and poly (dimethyldiallylammonium chloride) (PDDA). Scanning electron microscope (SEM) inspection shows that the SWNT multilayer is formed with a dense network...
We report the fabrication of single-walled carbon nanotube (SWNT) thin-film transistors on plastic substrates with layer-by-layer self-assembly. The resistance of the SWNT thin film decreases when the number of assembled SWNT layers increases. Increasing the substrate bending angle greatly decreases the resistance of the SWNT thin film. The resistance changes of thin films containing 14 and 16 SWNT...
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