Improving the electrical properties of MwCNT multilayer carbon nanotubes consisting of graphene layers (based on nano-microelectronics PHD) ( educational-research doctorate)
Researcher and author: PhD student Afshin Rashid
Note: Multi-walled carbon nanotubes consist of nested graphene layers and have a diameter of about 233 nanometers. The length of this nanotube can vary from a few nanometers to a few micrometers . Modifiable chemical levels, high levels, unique physical properties and rhythmic length make Mwcnts an ideal choice for applications in the development of nanoelectrochemical sensors.
Nanotubes can usually be added to their masses to improve the electrical properties of some materials, such as GCE (carbon glass electrodes) , carbon paste electrodes , graphite electrodes, or graphene electrodes . In general, the addition of nanoparticles to the structure of the electrodes has been shown to improve electrochemical properties, higher sensitivity, and less diagnostic limitations . In addition, in nanochemical chemical detection methods , the use of nanostructures generally improves the charge transfer at the electrode surface.
Carbon nanotubes are divided into two categories: single-walled carbon nanotubes (swCNTs) and general (multi-walled carbon) (mwCNTs) nanotubes. Today, large-scale CNT-based sensor operating systems can be used using techniques. Manufacturing micro and mono layered. Nano-carbon materials have unique advantages, including high surface-to-Hajj ratio, high electrical conductivity, chemical stability , biocompatibility and strong mechanical strength. Therefore, they are often used as sensory elements. In general, nanocarbon-based sensors have higher sensitivity and less diagnostic limitations. Counterparts than themselves. Morphology of carbon nanomaterials is another factor in electrochemical nanosensors designed to increase performance and improve their capabilities and stability in the electron transfer process is. Biosensors based on carbon nanotubes are an efficient tool for detecting biological molecules in the body and in laboratory environments. In fact, carbon nanotubes provide biocompatibility matrices for biosensors due to their desirable properties.
Conclusion
Graphene, as a two-dimensional material, has a special place in nanotechnology due to its unique physical properties. Single-walled carbon nanotubes, consisting of graphene layers, are able to be used in a wide range of nanoelectronic applications due to their excellent physical and chemical properties, high electrical conductivity and small size. WCNTs have a high ability to improve the electron transfer reaction. This feature also improves the signal-to-noise ratio and ultimately leads to hypersensitivity to nanochemical sensors to detect chemical and biological analyzes.