7) Describe briefly the electrical conduction phenomena caused by the Coulomb blockade in nanoparticles. In short...

Describe briefly the electrical conduction phenomena caused by the Coulomb blockade in nanoparticles.

In short sentence

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Expert Solution

The phenomenon of Single electron tunneling such as Coulomb blockade have been widely attracting huge interest mainly due to their scientific and technical importance .Coulomb blockade of tunneling is actually a phenomenon which is observed in low capacitance tunnel junctions that is maintained usually at lower temperatures.

the process of tunneling of a single electron mainly causes the charging of the junction capacitance and hence it will block the tunneling for voltages below e/C. Here the symbol e stands for the electron charge and C is the capacitance of the junction . In order to observe the phenomenon of Coulomb blockade the charging energy Ec=e^2/2C should be kept as much large as possible close to the thermal energy kBT (kB is the Boltzmann constant and T is the temperature). hence for structures which is having micrometer and even sub micrometer dimensions this phenomenon is mainly observed even at low temperatures as low as below 1 K.

Amanda K answered 1 year ago

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