Section _ reproduction and production of nanowires

Investigating the reproduction and production of nanowires ( NWS) or  doped nanowires 

Researcher  and author: Dr.   (   Afshin Rashid)



Note: Nanowires ( NWS) alone cannot control the movement of electrons, so impurities must be added in a process called doping, typically with boron, phosphorus, selenium, or germanium. 

When the nanowire is doped, the electron movement can be converted,  allowing the electron flow to be turned on or   off  (stopping the electron flow), using the interlayer voltage of the nanowires (NWs   )   .  turns off Nanowires are another nanostructure thathas received many studies and researches. In general, the wire is said to be a structure that is extended in one direction (longitudinal direction) and is very limited in the other two directions. A basic feature of these structures that have two outputs is electrical conductivity. By applying the electric potential difference at the two ends of these structures and along their length, electric charge transfer occurs.



Making wires in nanometer dimensions is very interesting both from a technological and scientific point of view, because  they show unusual properties in nanometer dimensions. The ratio of length to diameter of nanowires is very high  (metal nanowires). These nanostructures are due to their special properties. which promise great efficiency in electronic components. Metal nanowires are    one of the most attractive materials due to their unique properties that lead to their various applications  . Nanowires can be used in computers and other computing devices. To achieve complex nanoscale electronic components,  we need nanoscale wires. In addition, nanowires themselves can be the basis of electronic components such as memory.



(Organic nanowires) These types of nanowires, as their name suggests, are obtained from organic compounds. In addition to metallic and semi-conducting materials, it is also possible to make nanowires from organic materials. Recently, a substance called "oligophenylene vinyline" has been considered for this purpose. The characteristics of these wires (such as conductivity, resistance, and thermal conductivity) depend on the structure of the monomer and its arrangement. The chemical structure of these compounds creates interesting properties.  The future of nanotechnology depends on the ability of researchers to achieve the techniques of organizing molecular components and achieving nanometer structures.   By imitating nature, achieve the organization of proteins from yeast to produce conductive nanowires.  The organization of living parts in nature is the best and oldest example of "bottom-up" construction, and therefore it can be used to understand and find  methods for making electronic and micrometer devices. Until now, "top-down" manufacturing techniques have been used, which  are often laborious and costly at the nanometer scale, and the commercialization of nanotechnology requires easy and cost-effective methods, the best  example of which is the nature around us; It is enough to open our eyes a little and look more carefully around us.  (Silicon nanowires) This type of nanowires is not toxic and does not harm cells. This type of nanowires has shown its greatest use in the medical field, such as detecting cancer symptoms, stem cell growth, etc.,  which we will discuss further.



Conclusion: 

Nanowires ( NWS) alone cannot control the movement of electrons, so impurities must be added in a process called doping, typically with boron, phosphorus, selenium, or germanium. 

Researcher  and author: Dr.   (   Afshin Rashid)

Specialized doctorate in nano-microelectronics