Section _ reproduction and production of nanowires

Structured nanowires and cylinders  (silicon/germanium)   for possible applications in electronic energy

Researcher  and author: Dr.   (   Afshin Rashid)



Note: Strings and micro cylinders of structured  nanowires  (silicon/germanium)  are used for possible applications in energy, electronics, optics and other fields.

Nanowires  (Si Silicon / Germanium Gi)  , narrow structures whose diameter is only a few billionths of a meter but thousands or millions of times longer.  They exist in various forms—made of metals, semiconductors, insulators, and organic compounds—and are used for applications in the fields of electronics, energy conversion, optics, and chemical sensing. Because of their extreme thinness, nanowires  with a (Si Silicon / Germanium Gi) structure  are essentially one-dimensional. Nanowires  are quasi-one-dimensional materials, "their two dimensions are on the nanometer scale."  This one-dimensionality confers distinct electrical and optical properties. For one thing, this means that the electrons and photons in these nanowires experience "confined quantum effects." However  , unlike other materials that produce such quantum effects, such as quantum dots, the length of nanowires allows them to communicate with other macroscopic devices and the outside world.



The structure of a nanowire is so simple that there is no room for defects and electrons pass through without hindrance.  This is a big problem with conventional crystalline semiconductors, such as those made from silicon wafers: these defects are always present in those structures, and those defects interfere with the passage of electrons. In addition, materials that normally do not mix easily can be assembled into nanowires.  For example, layers of silicon and germanium, two widely used semiconductors, "are very difficult to grow side by side in thin films."  "But in nanowires, they can be grown without any problems."  In addition, the equipment required for this type of vapor deposition is widely used in the semiconductor industry and can easily be adapted for the production of nanowires.



Conclusion: 

Strings and micro cylinders of structured  nanowires  (silicon/germanium)  are used for possible applications in energy, electronics, optics and other fields.

Researcher  and author: Dr.   (   Afshin Rashid)

Specialized doctorate in nano-microelectronics